irid   von  Bernewitz 


T  N 

560 
A12 
U53 
MATH 


RATURE 
1921 


UC-NRLF 


3  1SS 


FOSTER  BAIN,  DIRECTOR 


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BIBLIOGRAPHY 
OF 

:RATURE  ON  SAMPLING 

TO  JULY,    1921 


COMPILED    BY 


D    M.  VON  BERNEWITZ 


WASHINGTON.    O.    C. 


t 


1 


A/3.  US  3  Property  of  the1"'*' 

H.-S.A:.  so.  ass  Wm,  Statistical  Laboratorv 

?nl  ~u    i  c,  JD  «T4T 


ch  3922.  .  ,   . 

*«u«v  Dept.  of  Mathematics 

REPORTS    OF    IM^STIGATICNS  University  of  Caiifor 

BUREAU  OF  MINES  -  -  DEPARTMENT  OF  THE  INTERIOR 


BIBLIOGRAPHY  OF  LITERATURE  ON  SAMPLING. 
(Compiled  "by  W.J.  Sharwood  and  M.W.  von  Bernewitz) 


So  far  as  is  known,  tnere  is  no  complete  bibliography  on  sampling, 
therefore,  this  one  should  be  of  value.   In  it  are  nearly  eleven  hundred  refer 
ences,  some  dating  back  30  years,  on  sarrpling  at  mines,  mills,  smelters,  power 
plants,  pumping  stations  and  refineries.  For  convenience,  there  are  included  a 
:ew  references  to  methods  for  sampling  such  materials  as  leather  beltinfc  in  mills, 
salt  impregnated  soils,  and  mine  waters.   All  the  important  technical  journals, - 
including  some  in  foreign  countries-  and  engineering  society  publications,  also 
mining  and  metallurgical  text -books,  have  been  studied  for  anything  concerning 
sampling,  and  while  it  is  not  claimed  that  every  important  reference  has  been 
listed,  the  bibliography  is  fairly  complete. 

The  arrangement  is  alphabetical  by  authors1  names,  and  the  references 
are  numbered  serially  in  the  order  that  they  appear  in  the  bibliography.  Anon 
ymous  references  are  listed  under  the  name  of  the  journal  in  which  they  appear, 
and  are  numbered  like  the  references  bearing  an  author's  name. 

Patents  are  grouped  in  their  numerical  order,  without  index  numbers. 

Under  the  heading,  "U.S.  Bureau  of  Mines  Publications",  are  listed  all 
publications  of  the  bureau  that  deal  with  sampling.  While  the  serial  number  is 
omitted,  these  same  references,  of  course,  have  serial  numbers  where  they  appear 
in  the  list  arranged  alphabetically  by  authors. 

Acknowledgement  is  made  to  Miss  Florence  Wilkie  and  to  Miss  H.  Shelby 
Holbrook,  who  assisted  in  revising  the  manuscript. 


CONTENTS 
--  Page 

"Bi'blio2r!Yovy    (eyceT>t  patents)    -----------------      2 

"Patents  ---------------------------------------  72 


U.   S,   STJPFBT.T  rp  nfjTTF^  publications 
containing  notes   on   sampling 


Subject   in^3*  ---------------------------  ......  83 


JIBLIOORAFHT. 


1.  Abrams,   E..JT.       Core-drills  in  the  petroleum  industry.     Eng.    and  Min.   -Tour;  , 

vol.    Ill,   1921,   p.    631.      This  ty^e  of  drill  gives  fcoea  cores  aud 
sables. 

2.  Addicks,    Lawrence.        Chroi-e   -;lent  of   the  U.S.  Metals  Refininfe  Co..     Mineral 

Industry,   vol.    15,    ]9u6,   p.   302;   ^r&.   and  i/iin.   Joiir.,  PP- 

10C1  -   1006.      Describes   sampling  of  carloads  of  O.Q  and  of  j  J  J,   tfopper. 

3.  _      _       Copper  from  secondary  material.      Chem.   and  Met.   E.if.,.,    vol. 

22,    1920,   p.    119.     Hov?  to   sample  junk  metals. 

4.  Akerbolm,   K.A.        Sampling  copper  cres  at  Falu,-.     Teknisk  tidskrift,   vol.   2*, 

•  p.   10. 

5.  Alaska  Juneau  Geld  fining  Co.  Reports  for  1917  to  1920  give  number  of 

samples  taken,  average  value,  how.ts.lcen,  and  comparison  with  mill  returns; 
10,400  samples  taken  in  8  years  to  end  of  1920. 

6.  Aldorson,  M.W.   Sampling  with  churn-drill.  Min.  and  Sci  ,  Press,  vol.  92, 

1906,  p.  327.  Surface  deposit  was  sampled  by  drill.   Samples  were  a 
in  a  can  set  in  tne  water-box,  A  sample  was  taken  for  each  foot  of  pos 
sible  ere. 

7.  Allen,  A.V/.   An  automatic  sampler,  Enfc.  and  Min.  Jour,,  vol.  104,  1917, 

P.  66.  Describes  pulp  sampler. 

7.  (a)  Handbook  of  ore-dressing.   1st  ed.  1920,  p.  242.  Weights  to  be  taken  in 
sampling  ores  of  various  grades,  sampling  in  Dills  at  mines  ana  custom 
works,  coning  and  quartering,  vezin  and  tailing  samplers,  dryinfe 


7.    (b)  Recovery  of  Chilean  nitrate.      1st   ed.    1921,   jj.   4d,     Difficulty  in 

Caliche  and  rssJdae   is  briefly  discussed,   but   overcome  by  a  new  process, 
pp.    VII    (vrefaco),    3,    17,    20,    25,    32, 

6.       __       The  Chr.onicaiijota  enterprise.     Min.   and  Sci.   Press,   vol.    122, 
1931,   p.   779.     £.2uvlinfc  and  te^ir^    Lhe  Chile  Copper  Go's   ore-bcay.     Vol. 
123,    1921,   p,    117,    Sampling  residue  from  the  j.J*£chi  ng  vats. 

9.  Allen,    G  L.       Flotation  of  oxidised  ores  of   lead,     bureau  of  Mines   circular, 

May,    1916.     Ab»tr.    in  Chen.,    and  Mot  .   Enb.,   vol.   20,    1919,   p,   172.     How 
sheet    shows  position  of    sampler. 

10.  Allen,    I.C.       Purchase  of  fuel-oil  for  the  Government,   with  directions  for 

sampling  oil  ar.d  natarc-.l  gas.      Bur-seu  of  Mines  Tor^uv.cal  Paper  3.    1^11, 
pp.    16.     Methods  of   sampling  wakens,    large   tanks,    dr^ms,    and  gas  welis. 

11.  Ambler,   J,   0.        S'-.acli  losses  at  the  Ari7.cna  Copper  Go's   smelter.     Chem-    and 

Met.   Eng,,   vol.   22,    1920,   p.   305.     Method  of   sampling  flue  gases,    sncwn 
on  plan. 

-2- 


12.  Ambrose,  A.V/.   Oi  If  i  eld  watar  problems  .  En-;  .  and  Min.  Jour.,  vol.  109, 

1920,  p.  979.  Collecting  representative  sauvles  of  water  fron  oil-wells. 

13.  ^  _    Petroleum  production  engineer.  Sn^.  ana  Min.  Jour.,  vol. 

109,  1920,  p.  666,  Ar..ong  his  daily  duties,  the  engineer  snould  visit 
drilling  wells  for  collection  of  sai-ples  of  formations. 

14.  _  _    Underground  conditions  in  oil  fields.  Bureau  of  Mines 

Bull.  195,  Petroleum  Technology  62,  1921.  Sa&plint  drill-cores,  sample 
containers,  exa^-ination  of  samples, 

15.  American  Concrete  Institute.   Specifications  for  concrete  stone  and  cement. 

Proc.  vol.  XIII,  1917,  pp.  465  and  474.  How  samples  shoula  be  taken. 

16.  American  Perfumer,  vol.  15,  1920,  p.  co«  Sanplin^  essential  oils  by  brokers 

in  London. 

17.  American  Society  for  Testing  Materials.   Tentative  method  for  sampling  and 

analysis  of  coal.  Proc.,  vol.  14,  pt,  1,  1*1*,  pp,  409  -  452.  The  second 
part  of  report  by  the  Coux'dttee, 

18.  _  __  .   Tentative  methods  of  laboratory 

sampling,  and  analysis  of  coke.  Proc.,  vol.  16,  1916,  part  1,  pp.  551  -  555 
vol.  17,  1917,  part  1,  pp.  813  -  825, 

19.  __  __  ,   Tentative  methods  for  laooratory 

sampling  and  analysis  of  coal.  Year  Book,  1915,  pp,  596  -  624.  Third 
Section  of  report  by  the  Committee. 

20.  _______  _  .   Tentative  aethods  for  the  sampling 

and  analysis  of  creosote  oil.  Proc.,  vol.  16,  1*16,  part  1,  pp.  564  - 
565.  Gives  Standard  for  continuous  drip  sables,  gravity  samples,  and 
stcrage  tank  samples. 

20.  (a)  Anaorson,  B.G.   Mine  sampling  methods  at  Tyrone,  N.  Mex.,  Enb,  and  Min. 
Jour.,  vol.  112,  1921,  p.  531.  Specialized  routine  work  on  the  disseminat 
ed  copper  deposit  of  the  Chino  Company,  showing  ..any  forums  used  ana.  reacrds 
kept.  Testing  keeps  close  supervision  over  the  grade  of  ore  and  on  j^ro  feres 
of  development  . 


21.  Anderson,  Glen.   Notes  on  uine  sampling.  Eng.  and  Min.  Jour,,  vol.  91, 

pp.  466  -  469;  consent  ,  p.  1143.  Describes  methods  and  tools  for  under 
ground  sampling,  also  preparation  of  sacvles  for  assay,  and  guards  against 
salting. 


22.  Andersen,  R.J.  and  Copps,  J.H.   Gas  atmospheres  in  aluminum-  alloy 

furnaces.  Chen,  and  Met.  Er%.,  vols.  24  ana  25,  1921,  p.  1020  and  .54. 
Gas  samples  were  taken  frcui  furnaces  and  analyzed. 

23.  Annual  reports  of  Transvaal  Chamber  of  Mines.  Dust  sauplin*  departnent's 

duties,  p.  71  (1916),  p.  *6  (1*17);  py,  -±4,  73,  103,  214,  21^  (1916).  As 

many  as  36,000  Samples  were  collected  in  a  year, 


-3- 


24.     Argall,   Philip.       Machine   sarLplirifc,.     £n^ »  and  Min.   Jour.,   vol.    06,    1^08,   p. 
291.     Discusses  intermittent   ore   streaus  and  essentials  cf    sailing. 

25. .       Mill  -  -tests  V,    hand-sailing,     Min.    and  Sci  i ,  "Press, 'vol. 

115,    1917,   p.    673.      Criticizes-  article  by  Morton  Webber, 

26. _i_.        Sa..^.ling  and  dry  crushing  in  Colorado.     Trtdis.   Inst.  M  ana 

M,   vol.   X>    1»Q1,.  p;  22<t.    "A  'review  of   ^ei-hods  on  Oriople  Creek  gold-tell- 
uride  ore,    including-  redticirig  the  lots   received  for  Ireat^.ent ,    cutting  the 
sample,    sai-pling  rich  ere,    taxing,    encL  e.ss^ying.     Disc-ussion  by  Alfred 
Ja:.'ies  and  othqrs. 

26.    (a) Sampling  and  estimation  cf  ore.     Enb,   and  Min.   Jour,,   yols. 

75  and  76,    1S03  pp.   260,   889,    115,   729.-  .Discusses  ore  developed  places,  for 
sampling  size  of   Sc^i.plss,    checking,  a. .re-sai^pling,   pockety  deposits,   and  a 
description  of   the  Jones 

27, 


Sampling  ore.     Min,  and  Sci  .   Press,   vol.    9<*,    1907,   p. 


Gives  reasons  for  sampling  ore  at  the    till. 

28.  Arizona  Mining  Journal.       Assay  methods  cf  Copper  Queen  Brarich,.  Phel^s 
Dodge  Corp.   -  vol.   IV,  -No;   9,    1921,  p.   4.     Handling  and  assaying  over  500 
samples  daily. 

29.  Asoeek,   J.       Probenahu.e  bei'  silberhaltige;.:  Werkblei   in  Blocken.     Cheu.   Zeit., 

JaJir.   29,    1905,   pp.  .78  -.  7S,    pt.'i;'    Describes   sauipling   of  '  arr,entif  ercus- 
lead'b&rs, 

30.  Ashcroft,   J.V,'.      Sandier  used  in  connection  with  flotation  process  at.  Kyloe, 

N.S.  Wales  Trans.    Innt  .  Min,    ana  Met:.,    vol.    22,    1912  -   i3,   pp.   3   -'25; 
Minos  and  Methods,   vol.   4,   Dec.    1912,   p.   yl  . 

31.  Atwood,   Melville.        Si^le  working  test  for'  determining   the   quantity  cf  gold. 

uiecbani'caliy  combined  with  auriferous  vein-u.atter  .     Fifth  Annual  Report  of 
State.  Mineralogist   of  California,    1385,   p.   78.      Abstract   in  Min.    and  Sci. 
Press,   vol.    60,    1390,   p.   281.     Describes  method  of   sailing  c.uriferous 
qus.rtz.  ;. 

32.  Aupperls,   J.A.       Methoa  of   sampling  and   analysis  of  tin,    terne,   and  lead 

coated  sheets.     Prcc.   American  Soc.   for  Testing  -.  Materials.      Vol.    14, 
pt.    1,   pp,    162  -   171. 


33 


.     Austin,    L.S.        CoB^rcial   sampling  cf  minerals.   ,  Enb.    and  Min.  Jour.,    vol.   3*t, 
2,   pp.   45,   70,    lOa-109,-   145-149.      Describes   quartering  and   split-shcvdl.   .. 
methods  and  iuachinery  for  crushing. 


rj  / 


.    , 

r  -  .   _    Fire  assay  cf   gold,    silver,   and  lead  in  ores  and  metallurgical 
products.      1st   ed.    lbC7,   86  pp.     Discusses  saj\plinb  and  ;  preparation  of   tne 
ore  icr  a&say  (pp.    12-14);    •'  • 

~—  ---  -       Machine   sampling,     Eng.'  and  Min.   Jour.,   vol.   86,    1*06,   p.  .238. 
Dl8CUfis««  article  by  J.A.   Church  on  ore   sampling,  by  machine.   En&,    and  Min. 
Jour.    vol.    66,    1905,    p   113.  '  .  ... 


(a)     _____  _  _.      Metallurgy  of  cocmon  metals,    3rd  ed.    1913.      Contains 

notes  on  sampling  works,    and  how  tox  sample  ores,  and  u.3t^ls, 

_  :  _  _.     Metallurgy  of  Copper  in  1917;,  .    M'in,   Ind.   vol.   ^6, 
Ibl7,   x.,p.    179-205.      Describes   sampling  cf  wet   concentrates,   pp.1  133-134. 


Jtfead  of  .uniform  methods  of   saiLlin     Lake  Superior 


iron  ore,     Trans,   Aiii.   Inst.  Min.   Eru.   vol.   50,    lyiu;  pp.   215-230.     Dis 
cussion  of  article   by  A.B.  Murray. 


Recent   Si^eltin^  practice  in  Colorado,     Mineral  •  Ind. 


vol.   6,    1697,   p,   437,     Describes  sampling  of  copper  pig  at   shelters. 


Sampling  Lake  iron  ores.     Prcc,  "Lake  Superior  Min. 


Inst.,   vol.    13,  1906,   pp»   225-230.     Discusses  principles  aha 

0*  '*- :..''    '  ,. — .     7/a shoe  plant  of  the  Anaconda  coup~ny,   Montana.     Trans 

Am.    Inst.  .Wan.   En0,   vol.   37,    1906,   pp.,  431-435,      Sampling  iui  11  described 
with  flow- sheet. 

0.  (a)     Austin,  ,1V.   L,       Mine   splint,.     Eng.    and,. . Ml n.   Jour . ,  vol.   76,    1903,  p. 

45.     Discussion  of  R.A-,   Parker  on  mixing  samples  on  canvas. 

1,  Bailar,   J.C.     Sampling  products  of  concentrating  and  "slitting   tables,     V/est . 

;  Ghent,   and  Met..,   vol.    1,    1905.,.  p.   135;.  , Min.   and  Sci.  Press,   vol.    91,    1*05, 
p,   294;   Jour  *   Che^..   Met.   and  Min..  Sec.   S.   Africa.,   vc.l.    6,    1905-06,  -pp. 
175,     Describes  a  simple  teeter-box  sampler  and  another  with  a  ijutilated 
gear-wheel  driving  a  pinion  intermittently;  .compared  hand  ana  automatic 


2.  Bailey,  E.G.  Accuracy -in  sampling  ;coal.-  Jour,  Ind.  and  En  &;  Chen.,  vcl.  1, 
1909,  pp,  161-178.  Discuss  influence  of  size-weight 'ratio  probability  of 
error  in 


5« .     Sampling,  coal  and  coke.     Mines  and  Minerals, 'vol.  31,    1910- 

11,   pp,   89-i93,;  190-192,    209.     Shows  various  patterns  for  takinr   sa^jples 
from  cars  with  snovel.     Illustrates  a  riffle  sav-pler  of  the  Jones  type. 

* '  .    . 

Bain,  H.Foster.     Metallurgical  probleius.  of  *  the  Hand,    '.Mih,  and  Sci.   Press 
vol.   114,    1917,  pp.    227-235.      Discusses  Dill 


5.  3all,   L.C,     Gray1  s  Luck  geld  -mine  at  on,e  udle,  Nanan^o,   Queensland,  -Queens 

land  Gov't.  Min.   Jour.,   vcl,    16,    1915,   pp.    167-171.     Describes  sampling 
method  used  and  giv.es  .sampled  grouped  for  analysis. 

6,  Bancroft,   G.J.     MLn,    and  Sci.   Prsss,   vol..  92,  1906,   pp.  365.     Describes  a 

hand  stanip  for  preparing  mine   sa. 


7.  _  .  Notes  on  utne-aapyo.ling.  Min.  and  Sci,  Press,  vol.  76,  1699, 
p.  636.  Gives  principles  of  sa^plin^  ore  in  mines  and  describes  the  foot- 
ounce  'method  of  valuation.  ,  .  •-,-  •  • 

3,     Bancroft,    G.J.     Saniplinfc  of  ore  in  a  udne.     En^  ',   and  Min,  Jour.,   vol.   75, 
1903,   p,  323.      Systeriiatic   sampling  has  its'  limitations  ;   examples  given, 

'     •   .  -5- 


4:7  _  Story  of  the  Independence  alleged  salting  case,  ^ 
Sci.  Press,  vol.  9G-?1,  1905,  .pp.  166-167.  Describes  .Lethod  of  sa^l 
the  dine  involved  and  gives  the  decision  on  the  case. 

50.  Barbour,  P.E.   Doubles  Copper  Shelter  at  Fundicion.  Mex.  Eng.  and  Min. 

Journ.,  vol.  65,  1*06,  pp.  303-305.  Describes  a  sailer  for  oar-load*  of 

'.o  re  u-ount  ed  en  a  DO  t  o  r  1  1  ruck  , 

51.  _  .   Gcldfield  consolidated  600-ton  mill.  En^.  and  Min.  Jour., 

vol,  36,  190b,  ;<p.  ;467-47ft,   Describes  sau\.iinfe  mill  * 

52.  ___  _.   Hc.:o-t:aae  automatic  ssu-pler.  En*,  and  Mm.  Jour.,  vol,  93, 

"  1*14,'  p.  7o6.  Describes  Sampler  constructed:  out  of  u^terial  on  hana  and 
designed  to  cut  a  narrow  ore  streau  frci.:  side  "t-  side. 

53.  Bardill,  J.O.   Bardill  sapling  r^acMine.  "Enj,..  and  Min.  Jour.,  vol.  100, 

1915,  pp.  603-804.  Describes  Machine  de'si6ned  for  su-ipling  we't  ana  sticky 
concentrates. 

54.  Bassett,  R.H.  -  New  uethcd  of  c-aking  -sieve-  'tests.   Iron  Trale'  Rev  .  ,  vol.  57, 

1»15,  pp.  230,  242b.  Describes  method  of  taking  Scoop  saaples  of  stock 
piles  at  Mesabi  -range*. 

55.  Bateuan,  G.C.   Notes  on  Une  sair^llnt.   Proc,  Can  .  Min  .  Itist.,  vol.  .16, 

lc/13.  Abstr,  in  Ens,,  -and  Min.-  Jour,,  vol.  ^5,  1913,'  pp.  513-516.  Di's- 
cus'ses  difficulties  in  samplinb  and  gives  efficient  methods'.  Paper 
presented  at  the  Ottawa  meeting  of  C'an.'  Min.  Inst  . 

56.  Bauer,  0.  and  Deiss,  E.  Sampling  and  cheaical  analysis  of  iron  and  steel. 

1915,  373.  prp.  English  translation  by  He.Te  and  Williuas. 

57.  Bell,  J.M.  The  flsihi  goli-fiela,  New  Zealand  .  Trans.  Aust  .  J.M.E.,  vol. 

15  (2),  1911,  p.  574,  Flow-sheet  shews  position  of  sampler  in  mill. 

56.  Bender,  0.  Stua-ium  ueber  das  Prcbene.an.en  von  2r?en  uit  Maschinen.   Zeit, 
fur  anger.  Chec.ie,  vol,  24,  1911,  pL;  /  1164-1166.   (lAechaniCtil  sampling. 
of  ores.  Translation,  Mines  and  Minerals,  vol.  32,  1911-12,  pp.  735-737) 
Describes  various  American  Eiacnines,  '• 

5b.  Bell,  Robert  N.   The  I.X.L.  Copper  prospect.   Eng.  ana  Min.  Jour.,  vol. 
103,  1919,  p.  400,   Sailing  low-  grade  chalcopyrite. 


60.  Bennetts,  B.H.   Some  nctes-<oh  SQiUplin^,.  Enj,',  and  Min.  Jour.,  vol,  68, 

p,  273.  Where  ere  is  i^oved  by  aerial  tra&.  suggests  tripping  every  10th 
car  into  a  special'  bin. 

61.  "Bentley,  Charles,   Sampling  and  analyzing  coal.  Pahasapa  Quarterly,  S.  Dak 

Sen.  of  Mines,  vol.  8,  1919,  p.  55.  Brief  description. 

62.  Bertrause,  L.   Analysis  cf  commercial  zinc.  AJ;.  chei;,.  anal,  vol.  23,  191o, 

pp.  161  and  131;  sampling  zinc  slabs  by  drilling  or  sawing. 


-6- 


63,  Jinns,   E.T.        V,  -at  er-  Cooled   sailing  tube.      Power,,  vol.   ^3,    1*16,   p.   303, 

Describes  tube  for  hi  ^h-  temperature  gases. 

64.  Biackett,    C.E.       Wetr.llurgy  at  Golden  Hor<3e-Sn&-3,   Western  Australia.      Mon. 

Jour.    Chamber  of    tflres,    Dec.    1919.     Abstr.    in  Mm.   Mag.,    vol,    22,  .1^20, 
p.    312,      Sapling  ^cld  bars. 


65.      Blyth,   W,B,       Preparation  cf   sine   sables  for  assay.      Min  ana  Eng, 

vol.    37,    1^12,    PW,    613-61<r.      Jour,    Chamber   of  wines  of  Western  Australia, 
July  ^51  ,  1912.      Discusses  relation  of    size  of   ore  sampled  ana  amount   of 
taken. 


66.  Boalich,   E.S,        Marketing   the  fine  prospect.     En,.,,   and  Min,   Jour.,    vol.    107, 

1»19,   p.    501.      whsn  attempting  to   sell  a  ^respect,    tue  owner  should  be  acle 
to   show  an  assay  ^p  where   samples  cane  fro.u. 

67,  Bock,   A.        Segregation  of    .etcvls   in  alloys  ana  its   ci.use,      Ch^n.    Zeit,,   vcl. 

2b,    19C5,   pp.    1199-1201;    Jour.    Soc.    che^.    Ind.,    vcl.    24,    1905,   pp.    1236- 
1237.     Describes   saLplmg  ana.  assaying  of   silver  ingcts. 


60.      Boericke,    \7..?,       Sac.pl ing  cnurn-drill  holes.      Em,,    and  Min.   Jour,,   vol. 

1S20,   p.    66,     When  in  ere,    runs  are  not   over  3  ft.      Before   resuming  drill 
ing,    the  hole   should  be   cleaned  out    so  as  not  to   salt   the  next   run. 


The   Crahall  tailing  plant,      Eng,'  ana  Min.   Jour.,   vol.    Ill, 


._ 
1521,       .      065.      Sa^plin^   200,000  .tons   of   1.75^   zinc   tailing. 

70.  Boericke,    vV.-p"..    and  Garnett,   T.H,      Wisconsin  zinc   district.      Bull.    152,  Aug. 

ISli*,    A.^.M.&M.E.   p,    1235,     Accurate   saupling  not  practised, 

71.  Eorcherdt  ,.  W.O.      The  Borcherat  auto.iatic    saapler  for   sand  ana   sline.      Eng. 

and  Min,  Jour.,   vol.    91,    I'-^ll,   pp,   455-457.     Describes  the  apparatus.. 

72.  Bosler,   L,C.     Autoitatic   sampling  of   coal.     Power,   Nov.   3,    1914.      Abstr.   in 

Coal  age,   vol.   8,    I9J.5,   p.4.2o.     Many  large  power  plants  use  grab   samples, 
but  the  Phila.    Rapid  Transit   Co.   uses  a  nachine  to   sample  all   coal  re 
ceived, 

73.  Botsford,   R.L,        Dia^ond-arill   saciplinf;.     Eng,   and  Min.   Jour.,   vcl.   95,    1913, 

pp.    1S-20,      Gives   sources  of   terror. 

74.  Bowen,   H.P.     Handling   sJudge  fron  divamond-  drill  holes.     Eng.   and  Min.   Jonr., 

vol.   95,    1913,   p.    ".289.,     Lov.cribsri  saving  sludge  for  samples  by  parsing 
the  water  from  the   :1  "ill-  hole  vhrc^h  coarse  woven  jute  or   sacks  ho],  a  open 
by  a  cylinder  of   coarse  copper  screen. 

75.  Boyd,   J,        Saapling  d-sst   in  airio  eir.     Report  to  Transvaal  Chamber  cf  Mines. 

Abstr,    in  Enfe.    ana  M\n.   Jc-ar  .  ,   x-1.    X07,    1919,   p.   395,      An  air  section 
pu^ip  is  used,   ar.d  1,'ho  q'-ic'.nlity  <•£  -aunt   i-s  arrivca  at  by  passing  the  air 
sample  through  a  tiros  containing   sugar,   which  catches  the  dust, 

76.  Bracket  t,   F.W.     A  puDp-strcam  sailer.     Eng.   and  iVaru   Jour.,   vol.   97,    1914, 

p.    1017,     Describes  the  EliuDre  rotating  pulp  sampler. 

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77,      Bradford,   Wagar.      Stope-b^x   sa^pli;;.*,.      J.ur.    Chet~.   iv-3t.    and  Min.    Soc.    S. 

Africa,    vol.    6,    1£  05-06,   p*.    103-10'J,    2<;4-225,   339-341.      Abstr.    J?ns.   ana 
Win,  Jour.,    vol*   71,    1906,   p.   1170.     Describes  ana  criticizes   stcpe-box 
sampling,  as  practised,  on  the  kand. 

73.  Bradley,  7/.W.  Quicksilver  deposits  of  California.  .Bull.  76,  State  Mining 
Bureau.  Describes  sailing,  and  testing  of  cinnabar. 

7^.  Bretherton,  S.S.  Automatic  ore  sampler.  Min.  and  Sci.  Press,  vol,  r7,  !*( 
321-322  Advocates  hand  sampling  in  custom-  sai^ol-.n-  as  core  accurate,  bui 
suggests  a  combination  hana  and  macnfne  sacpling. 

SO.  _  .  Hints  to  ere  shippers.  Proc.  ^ui.  Min.  Cong.,  1310,  pp.  '* 
265;  Min.  and  Sci.  Press,  vol.  101,  1*10,  pp.  530-532.  Points  out  diffi 
culty  of  takin^  moisture  samples. 

.      Sampling  custcu  ores.     Min.   and  Sci.   Press,   vol.    67,    ls>0i 


pp.  356  -357.      Illustrates  a  rotating  bucket    sampler, 

8.2.     Briigman,  H.   L,     A  mixer  and  divider  for  ore  samples,    and  Si^all   sainplinb 
machine.     Eng.    and  Min.   Jour.,    vol.   53,    15^2,   p.   275.     A  acre  accurate, 
convenient  and    a  faster  ...ethod  than  with  oil-cloth  and   spatula, 

New  system  of   ore   sampling.      Trans.  Am,    Inst.   Min.   Eng,, 


vol,    52,    1391,    p.    701;    Iron  Age,    vol.    5O,    18*2,    p.    770,      5)iscussc;s 

by  tiachins,    and  describes  three  types  of  OTA  chines  ana  a   raxer  ana  diviaei 

84.     Erinsinaae,   R.B.     Mining  ana  smelting  near  Monterray,   Mexico.     Min,  and  Sci, 
•  Press,   vol.   lid,    1919,   p,   741.     Sampling  ore  before   salting. 

£5*  _  _  .  Mining  ana.  scelting  near  Matchuala,  Mexico.  Min.  and  Sci, 
Press,  vol.  120,  lb»20,  p,  85.  Sampling  copper-  silver  ores  in  tne  dine  ar 
smelter. 

£6-     __  .     Mining  near  San  Luis  Potosi,   Mexico.      Min  and  Sci.   Press. 
.     123,    lb-21,  p.   61     Samplim,  ore  at   the  Metalilurgica  Mexicana  smelter. 

b?.  Brooks,  G.S,  and  Nitchie,  C.C.  Gas-prcaucer  practice  at  Western  zinc  plant 
Bull,  153,  131$,  pr,  2763.  A.  I.  M.  &  .  M.  E.  Sailing  gas. 

88.     Brown,   E.F.      Distribution  of  phosphorus  and  system  of   sa^plint,  at  the  Pewat 
mine.      Iron  Mountain  Trans.   Lake  Superior  Min.   Inst.,   vol.  3,    1835,   pkj. 
49-55. 

S*.     Brown,   Myles     Mines  ani  Minerals,   vol.   26,    1905-06,   pp.    168-170.     Coal   test 
ing,  describes  methods  and  apparatus  for  sac.pii.ng  coal  and  estimating 
moisture  in  it, 

90.     Brown,   R.G.     Mine   sampling.     Eng.   and  Min,  Jour.,   vol.   75,    1903,   p.    130. 

Calculations  -  foot-dollars  and  averaging.  Vol.  77,  3.904,  p.  151.  Dis 
cussion  of  Forbes  Rickard  on  samples  of  group  quartering  to  compare  v\ith 
the  foot-dollar  average. 


-8- 


f'O.  (a)   So^e  tailing  samplers,  Min.  and  Sci  .  Press,  vol.  93,  .1906,  p.  o42. 

Describes  a  tailing  sampler  in  which  a  sampling  box  is  swung,  tnrou^n  Dy 

water  power. 

.  Brown,  V/.S.  Device  for  reducing'  the  size  of  assay  samples.  Eng.  and  Min. 
Jour.,  vol.  63,  1907,  p.  232.  Describes  a  sailing  cabinet  with  riffles 
designed,  by  H.E.T.  Haultiin,  for  mill  ana  sina  sampling. 

92.  Brunton,  D.W.  Brunt  on1  s  quartering  shovel.  Eng,  ana  Min.-  Jour.,  vol.  51, 
1891,  p.  718.  Describes  and  gives  views  of  the  shovel  for  ore  containing 
25  to  50  per  cent  of  valueless  gangue. 

.  _  ,   Interview  by  T.A.  -,-Rickard,  Min.  and  Sci.  Press,  vol.  122, 
1921,  p.  753,  describes  his  wo'rk  in  sampling. 

.  ____  .  Modern  Practice  of  ore  sampling.  Am.  Inst..  Min,  Eng.,  vol. 
40,  1909,  "pp.  567-596.  Discusses  development  of  sampling  and  Describes 
sampling  machines  and  mills. 

.  _  __.  Modern  progress  in  mining  and  *  metallurgy  in  the  Western 
United  States,  Am.  Insfc.  Min.  Eng.,  vol.  40,  1909,  pp.  543-561.  Dis 
cusses  sau.pl  ing, 

.  _  ;    __  .  .New  system  of  ore-  samp  ling,  Trans.  Am,  Inst.  Min.  Eng.,  vol. 
13,  1885,  pp.  639-645.  '  Discusses*  public  sampling  and  describes  several 
sampling  devices. 

,     __  _  ._.  Sampling  of  ore.  Min.  ana  Sci.  Press,  vol.  97,  1908,  pp. 

665-666.  Defends  accuracy  of  moaern  methods  and  discusses  errors  possible 
with  sampling  machines. 


98,  ____  .  Theory  and  practice  of  ore-  sampling.  Trans.  A*-.  Inst. 

Eng.,  vol.  25,  1896,  pp.  826-344,  Report  of  investigation  to  determine 
the  fineness  to  which  crushing  cust  be  carried  in  sampling  gold  ana  silver 
ores  to  obtain  results  within  an  allowable  limit  of  error. 

99,  Brunt  on,  E,  K.  British  Columbia  Copper  Go's-  smelter,  Greenwood,  B.C.  Trans. 

Am.  Inst.  MLn.  Bag.,  vol,  52,  1915,  pp.  950-964.  Describes  sampling  mill 
and  gives  flow-  shoot. 

100,  Bullens,  D.K,  Assay  of  arsenic  -  nickel-cobalt-silver-ore.  Eng.  and  Min. 

Jour.,  vol.  90,  1910,  p.  309-810.  Describes  sampling  of  silver  ore  at 
Copper  Cliff,  Ontario. 

101,  Bunyan,F.W.  Sampling  Min,  and  Sci.  Press,  vol.  117,  .1918,  p.  837.  Relation 

between  efficient  s?mpling  of  raw  materials  and  chemical  control  of  their 
manufacture. 

•102.  Burch,  Albert.   S  gup  ling  large  low-grade  orebodies.   Min.  and  Sci.  Press, 

vol.  115,  1917,  pp.  Ho-116.  Discusses  mines  that  can  not  be  samplea,  <=und 
accuracy  of  mill  tests  for  iiiine  samples, 


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103.  Burch,  Kepyon,  Mine  ana  ..all  plant  ci  tse  'inspiration  Consolidated  Copper  Cc 
Arizona,  Bull.  Am.  Inst.  tfin.  Enp..,  Sept.  1916,  no.  11?,  Bp,146?-15C 
SaiLpling  plant,  pp.  14&0-  14?1. 


Bureau  of  Mines  publications  on  sa^lin^  .  t  See  U.  S.  Bureau  of  Mines  in 
Subject  Indox  at  end  of  this  bibliography, 

104.  Burgess,  R.J,  Mine  sampling  ?nci  napping,.  Er%.  ana  Min.  Jour.,  vol«  101, 
1916,  pp.  551-553.  Discusses  ?.dv  ant  ages'  of  systematic  sampling  and  the 
keeping  or  records,  'j 

lOo.  Burnham,  M.H,  Continuous  section  system  iu?  t  sailing.  Trans,  Inst.  M. 
and  M,  ,  vol  X,  1S01  ,  p.  204.  At  one  nine  on  the  Rana  the  reefs  were 
sampled  in  sections,  rather  than  sampling  the  minj  as  a  whole*  Discussion 
by  E.P,  Rathbone,  A.C.  Hodge,  W,H.  Trewartha-  James,  W.  McDormott. 

106.  Burrell,  G,A.  and  Oberfell,  G.G.  Composition  of  natural  gas  used  in  25 

cities.  Bureau  of  Mines  Tech,  Paper  109,  1915.   Sampling  w&s  done  by  300 
c.c.  bottles. 

107.  _  _  _  .  and  Seibert  ,  F.M.  Apparatus  for  gas-analysis  laboratories 

at  coal  mines!  Bureau  of  Mines  Tech.  Paper  14,  1913,  pp.23.  Apparatus 
includes  the  collection  of  samples. 

106.  _  .  and  Seibert,  F.ivi.  Sampling  and  examination  of  mine  gases  £.na 
natural  gas.  Bureau  of  Mines  Bull.  42,  1913,  pp.  116.  Sample  bottles, 
handpump,  fan  and  evacuated  containers. 

109.  Robertson,  I.W.,  and  Oberfell,  G.G.  Blackdamp  in  mines.  U.S.  Bureau  Mines, 

Bull.  105,  1916,  88  pp.   Describes  the  collection  of  samples  of  air  in 
mines, 

110.  Burrows,  J.S.   Importance  of  uniform  and  systenatic  ccal-a.ine  sampling. 

U.S.  Geol,  Surv.  Bull.  216,  1907,  pp.  486-617.  Discusses  car  sampling, 
mine  sampling  ana  sampling  for  laboratory  experiments, 

Mine  sampling  and  chemical  analysis  of  coals  testeu  at  the 


United  St  sites  fuel-t  isting  plant,  Norfolk,  Va.  U.S.G.S.  Bull,  36^,  1908,  < 
pp.   Gives  method  of  collecting  the  car  load  samples,  p.  7. 

__  •  The  Standardized  Sewalls  Point  Pool  coals.  Black  Diamond, 
vol.  6(j,  19«il,  p.  636.   Sampling  coal  at  Sewall's  Point,  Virginia. 

113.  Buskett,  E,w.   Sampling  and  assaying  spelter.  Eng.  and  Min.  Jour.,  vol.  Qot 
1908,  p.  812.  Describes  hand  sampling  of  spelter. 

____  •  Sarjpling  and  buying  ore  in  the  Joplin  district.  Eng.  and  Min, 
Jour.,  vcl*  86,  1908,  p.  190,  Describes  sampling  of  zinc  concentrate  with 
a  tapering  "gun"  4  inches  diameter  at  handle  ana  1  f  inch  at  point  thrust 
into  the  ore  in  bin  or  car, 


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115.  C'amp,  J.M.  The  Methods  of  the  U.S.  Steel  Corporation  for  the 

and  analysis  of  pig  iron.  Trans.  Ac,  Inst.  Min.  Eng.,  vol.  44,  1912,  .pp. 
220-549;  Eighth  Int.  Cong,  Applied  C&etu.  ,  1912,  sec.  lllaj 


116,  _  ^  __  ,  Methods  of  the  U.S.  S&eel  Corporation  for  the  technical  sailing 
and  analysis  of  gases.  Met,  and  Chem.  Eng,,  vol.  9,  pp.  302-306;  356-361. 
Gives  U.S.  Steel  methods  of  sampling  blast  furnace,  producer,  or  flue  gas, 
p,  302. 

**7-   ______  „  __  .  Sampling  methods.  iVlin.  and  Sci  .  Press,  vol.  99,  1909,  pp.  535- 

536,  Discusses  cargo  sampling. 

11Q-  -  --  •  Sampling  r^ethods  of  U.S.  Steel  Corporation.  Electrochem  ana  Met. 
Ind.,  vol.  7,  1909,  p.  65.  Min.  and  Sci.  Press,  vol.  99,  1909,  p.  535. 
Jour.  Ind.  and  Eng.  Chem.,  vol.  1,  1909,  pp.  107-115.  Iron  Trade  Rev.,  vol. 
44,  1909,  pp.  230.  Discusses  methods  of  cargo  sampling  and  preparation  of 
samples  for  analysis  adopted, 

119.  Campbell,  C.St.G.  Sailing  of  the  Cobalt,  Ontario,  silver  ores.  Trans.  Can. 
Min.  Inst.,  vol.  17,  1914,  pp.  I99j  Abst.  in  Min.'  and  Eng.  World,  vol.  41, 
1914,  p.  58,  Discussion,  pp.  237-261. 

119.  (a)  Canpbell,  H.H.  Manufacture  and  properties  of  steel,  4th  ed»  1907,  pp. 

639.  Selection  of  test  pieces,  p.  19  and  313. 

120.  Campbell,  J.R.  Metallic  iron  in  coke  samples,  Colliery  Eng.  ,  vol.  35,  1915, 

pp.  538-541,   Describes  preparation  of  samples  for  determining  the  aiLount 
of  iron  taken  up  from  the  grinding  apparatus, 

121.  Campbell,  M.R,  Coal  Fields  of  the  United  States.  U.S.  Geol.  Survey  P.P. 

100  -  A,  General  introduction,  p.  27,  explains  how  coal  samples  are 
handled. 


122  •     __.  __  .     Commercial  value  of  coal-mine  sampling.     Trans.  4m« 

Min.  Eng.,   vol.   36,    1905,   pp.   341-353,  834-835.     Abstr.    in  Can.   Min.  Jour., 
vol.   28,    1907,   p,   113  and  in  Eng.    ana  Min.  Jour,,   vol.   80,    1905,   p.   679. 
Discusses  mine  ana  car  sampling  at  government  coal-testing  plant,   St.   Louis, 
Mo.   and  suggests  method  of  mine  sampling. 

123.  Cairpredon,   L.     Echantillonage  des  matieres  minerals.    (Sanpling  minerals). 

Compte  rend/S.oc.    ind.     1906,   pp.   294-297.     Discusses  sampling  ore  in  place, 
extracted  ore  and  manufactured  products  such  as  coke  and  oil  products. 

124.  Canadian  Mining  Journal.     The  projected  custom  samp  ling  -plant  .     Vol.   30,    1909, 

pp.   580-584,     Describes  the  pla^t  and  gives  flow-sheet  and  plans, 

125.  Carle  SE,   Noel,     Cyaniding  of  gold-  silver  ores  at  Waihi  Grand  Junction  Mine, 

New  Zealand.     Trans,   Inst.  Min.   and  Met.,   vol.   24,    1914-15,  pp.   387-<*06. 
Describes  methods  of   sampling-  and  assaying,  pp,   401-403. 

186.     Carter,   T.Lane.     Mine  valuation,  Eng.   and  Min.  Jour,,   vol.  75,    1903,   p.   741. 

Sampling  recognized  of  utmost  importance  on  tne  Rana.     Discrepancies  between 
hand   sampling  and    nill  results. 

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126.  (a)      .   Sampling  placer  ground,  Eng.  ana  Mm.  Jour,, 

vol.  91,  1911,  p.  603.  Rocooiienas  aigging  pits  to  oedrock,  drying  the 
panned  residue,  blowinb  the  block  sands  and  weighing,  in  preference  to 
using  churn  drills  ana  sample  diggers. 

127.  Cazin,  Franz.  A  sii^ple  sampling  device.  Eng.  and  Min.  Jour.,  vol.  89,  19] 

p.  358, 

128.  Chance,  H.M.  Prospecting  for  coal.  Penn.  Gael.  Surv.,  vol,  A.G.  1883,  pp, 

19-54,  Describss  selecting  samples  for  analysis. 

128,  (a)  Channing,  J.  Parke.  Mine  valuation.  Eng.  and  Mn.  Jour,,  vol.  76, 

1903,  p.  383.  Calculations  based  on  sampling. 

129.  Char let en,  A.G.  Graphic  method  applied  to  delineating  orebodies  with  note; 

on  sampling  and  estimating  ore  reserves.  Trans.  Inst.  Min,  and  Met,,  v<: 
9,  1900-01,  pp.  203-226;  discussion,  pp.  226-231*  Describes  system  anu. 
gives  a  list  of  papers  on  sampling  and  estimating  reserves. 

130. ,  The  industry  of  mining.  Inst.  Min.  ana  Met.,  vol.  1,  189i 

93,  p,  184.   Gives  notes  on  sampling. 

131.  Chase,  C,A.  Liberty  Bell  mine:   solution  meter  and  pulp  sampler.  Trans. 

Acaer.  Inst.  Min.  Eng.,  vol.  42,  1911,  pp.  694-741;  Min.  and  Sci .  Press, 
vol.  102,  1911,  p.  844.  Gives  drawings  of  a  solution  teeter-box  meter, 
with  pans  in  water  as  dashpots  and  of  a  sampler  with  swinging  cutter 
attached  to  waightea  disc  tnat  revolves  loosely  on  a  horizontal  shaft. 

132.  .  Notes  on  the  Liberty  Bell  dine.  Trans.  Am.  Inst.  Min.  Eng., 

vol.  42,  1911,  pp.  734.  Describes  automatic  tailings  sampler  at  the 
Liberty  Bell  mill. 

133.  Chase,  Edwin.   Sampling  large  low-grade  orebcaies.  Min.  ana  Sci.  Press, yo 

115,  1917,  p.  453.   Ascribes  sampling  difficulties  to  lack  of  stanaara 
assaying  methods. 

134.  Chemical  and  Metallurgical  Engineering.  Bureeau  of  Standards,  standard 

samples,  vol.  20,  1919,  p.  276.  Efforts  to  renew  the  depleted  stock, 

135.  Chemical  Engineering  and  Mining  Review.   Commercial  sampling  ana  analysis  < 

coal,  coke,  and  by-products.  Vol.  10,  1918,  pp,  245-2^6.  Recommends 
use  of  chrome  or  manganese  steel  for  crushing  coke  samples  to  prevent 
contamination  with  iron. 

136.  Editorials  on  Badak  tin  mine,  Malaya,  vol.  XII,  1920,  pp.  209  and  391. 

Criticizes  the  sampling  of  100  acres  of  tin  ground  by  a  dozen  holes. 
Property  eventually  abondoned. 

137.  Christian,  G.L,  Tonopah  Extension  Assay  office.  Min.  and  ivlet.  No,  173, 

May,  1921,  p.  29.  Preparation  of  silver  ore  samples  for  assay. 


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138.  Church,  J.A.   Goldfield  Consoliaatea  stapling  Mill.  En^.  And  Mm,  Jour., 

vol.  87,  1909,  pp.  311-312.  Describes  jjethol  in  which  the  ore  is  only 
re-crushed  once  during  sampling  owing  to  ultii^te  fineness  of  crushing, 
and  in  which  &  sample  is  taken  fro--  all  the  ore. 

139.  _.  Principles  of  cachine  sampling.  Eng.  an^  Win.  Jour.,  vol.  36, 
" 


1908  pp.  113-115;  discussion,  pp.  142,  238,  291,  33b,  431-433,  531,  776, 
917,  551,  1013,  1111;  vol.  87,  1909,  pp.  269,  420,  516,  862.   Discusses 
conditions  necessary  for  accurate  s,unpling,  the  disturbing  efforts  of  un 
controlled  agitation  and  the  control  of  feed,  describes  simplex  sampler. 

139.  (a)  Clark,  Donald.  Australian  Mining  and  Metallurgy.   1st.  ea.  1904,  pp. 

534.  Sampling  sulphc-telluride  ore,  leaa-silver  ore  and  d  copper-gold- 
silver-lcad  ore. 

140.  Clarkson,  T,  Sampling.  Trans.  Fed,  Inst.  Min.  En*,.,  vol.  9,  1894-95,  p.  312; 

discussion,  pp.  314-319.  Argues  for  sampling  machinery. 

Sampling  of  materials.  Trans.  Inst.  Mm.  and  Met.,  vol.  2, 


1893-94,  pp.  229-248;  Jour.  Soc.  Chem.  Ind.  ,  vol.  13,  1894,  p.  214.  Dis 
cusses  principles  and.  metnods  of  sampling  ana  describes  seven  different 
ciechanical  samplers  for  ores  and  tailings. 

142.  Claude t,  A.C.  Notes  on  sampling  argentiferous  ana  auriferous  lead,  with 

diagrams  illustrating  the  unequal  distribution  of  the  precious  ir.etals, 
Trans,  Inst.  Min,  aid  Met.,  vol.  6,  1897-98,  pp.  29-42..  Describes  saupling 
by  (1)  cutting  chips  out  of  tops  and  bottoms  of  bars,  (2)  sawing,  by  a  cir 
cular  saw,  through  the  bars,  and  (3)  ir.elting  the  bars  in  mass  into  clean 
lead  and  dross. 

143.  Cleland,  E.D,  ttest  Australian  Mining  Practice.  1911,  268  pp.  Discusses 

sampling,  pp,  102-103,  197-202. 

144.  Cleland,  W.L.  Tin-dressing  at  Stannary  Hills,  North  Queensland,  Trans. 

Aust.  Inst.  M.  E.  ,  vol.  Xii,  1907,  p.  154.  Automatic  s&qpling  of  ruill 
pulp. 

145.  Clennell,  J,E.  -phe  cyanide  handbook.   2nd.  ed.,  1915,  p.  600.  Covers  fully 

sampling  from  ore  to  residue  in  iiulls  and  from  cyanide  to  bullion  in 
treatmynt  plants. 

=6.  Clevenger,  G-.A,  Mill  and  metallurgical  practice  of  the  Nipissing  Mining  Co., 
•  Cobalt,  Ontario.  Tran.  An.  Inst,  Min.  Eng,,  vol.  49,  1914,  pp.  156-179. 
Discussion  pp.  179-162. 

=7.  Cloud,  T.C,  Wallaroo  smelting  works.  Eng.  and  Min.  Jour.  ,  vol.  83,  1907, 
pp.  324-330.  Describes  sampling  room  and  methods  at  Wallaroo,  South 
Australia. 

•8.   Coal  Age.  Automatic  sampling  of  coal.  Vol.  8,  1915,  pp.  423-424.  Describes 
and  gives  figures  showing  an  automatic  sampler. 

-13- 


2»i3v;  coal  crusnc*r  ana  sampler,  vol.4,  11/13,  p,  606. 


An  autou-atic  ur,c*.  reliable  stalling  ri^C'iire  made  by  tne  Sturtevaat 
Co.  of  Boston. 


150.   Cclburn,  S.A.  Mind  ana  mill  equipment  t.t  tne  Ajax  mino,  Mexico.  Max.  Mm. 
Jour.,  vol.  16,  1913,  p.  231.   Describes  S-Xuplin^  and  crushing  i^h'jds. 


151.  Colby,  A.L.  Sampling  pig  iron  for  gmalysis.   Iron  Age,  vol.  61,  June  2, 

1898,  pp.  13-16.  Discusses  sampling  the  drilling.  of  pigs,  the  dnl 
from  snail  test  ingots,  shotted  samples,  sampling  to  determine  graphitic 
carbon,  saL;plint;  of  cars,  and  sampling  to  check  chemist's  analyses. 

152.  Colcord,  F.F.  Eng.  and  Min.  Jour.,  vol.  82,  1906,  pp.  1164.  Describes 

method  used  in  the  Cobalt  district  for  sampling  and  assaying  ore  carrying 
metallic  silver, 

153.  _  .  Sampling,  ana  assaying.  Min.  Ind.,  vols.  lo  (1906),  16  (1907), 
17  (1908),  18  (1909);  pp.  790,  944,  966,  731,  respectively.  Reviews  arti 
cles  on  sampling  for  year. 

154.  Cole,  A.  A.  Sampling  of  silver-  cobalt  ores  at  Copper  ,tCliff,  Ontario,  Jour. 

Can,  Min.  lust.,  vol.  11,  1903,  pp.  267-292;  Eng.  and  Min.  Jour.,  vol.  67, 
1909,  p.  1283.  Describes  method  involving  first  cut  with  Snyaer  sampler, 
finishing  on  Jones  riffles. 

155.  Colliery  Enginoer.  Analysis  of  coal,  ores,  etc..  Vol.  12,  1891-92,  p.  '211. 

Describes  canvas  and  quartering  method  of  preparing  samples. 

156.  Collins,  E.J.  Knock-down  sample  catcher.  Eng,  ana.  Min.  Jour.,  vol.  s>7, 

1914,  p,  1289,  Describes  a  canvas  catcher  for  use  in  cutting  samples 
a  face  . 

157.  Collins,  G.E.  Mine  sampling:.  Eng.  and  Min,  Jour.,  vol.  76,  1903,  p.  4. 

Discussion  of  Philip  Argall1  s  classification  of  ore  deposits. 

157.   (a)  _  .   Searching  for  ore-shoots  in  veins.  Eng.  and  Min.  Jour.,  vol. 
95,  1913,  pp,  941-9^4,  Discusses  value  of  geologic  theories  ana  detailed 
sampling  of  indications  as  guides  on  exploration.  Reprinted  in  p£-.r&  from 
address  before  the  Colorado  Scientific  Society  and  published  in  its  Pro 
ceedings,  April,  1913. 

157.  (b)  Collam,  R.E.  Prospecting  and  testing  oil,  gas,  and  water-bearing 

strat-a.  Bureau  of  Lines  Bull,  201,  1921,  Sampling  and  identifying  drill 
cuttings  from  oil-wells. 

•157.   (c)  Courtis,  W.M.  sampling  Mines.  Eng.  and  Min.  Jour,,  vol.  75,  1903,  p. 
473  .  Grab  sampling  considered  of  value  . 

158.  Cox,  H.A.  Gas-sa:,pling  pipes.  Power,  vol.  44,  1916,  p.  360.  Suggests 

method  for  sampling  gas  for  recorders  and  Orsata, 


-14- 


159.  Crarjpton  ,  T.H.M.      Silvernorn  district,   Nevada.     Min.   and  Sci.   Press,   vol. 

122,    1921,   p.   883.      Sampling  an  outcrop  ana  cost   of  assaying  samples. 

160.  Crane,    E.B.     Difficult   nine   sampling.     Win.  ana  Sci.  Press,  vol.   ll<i,   1917, 

p.  539.  Sampling  cinnabar. 

161.  Crocker,  Wai.  Prospecting,  Min.  and  Sci.  Press,  vol.  122,  1921,  p.  774. 

Prospecting  and  sampling  alluvial  gold. 

162.  Crocker,  W.J.  Average  analysis  of  iron  ore;  method  by  units.  MKa,  and  Eng. 

World,  vol.  38,  1913,  p,  434.  Describes  method  by  unit  of  sampling  ore  as 
it  coiT.es  out  of  the  mine  on  the  way  to  stockpiles. 

-Cro^eo,  C.S.  Oil-shales  of  Estill  County,  Ky. .  Eng.  and  Min.  Jour.,  vol. 
110,  1920,  p.  24.  Preparing  samples  for  distillation  tests. 

164.  Crowell,  Benedict.  Methods  of  sampling  at  Lake  Superior  iron  mines.  Proc, 

Lake  Superior  Min.  Inst,,  vol.  17,  1912,  pp.  76-93;  Abstr.  in  Iron  Trade 
Rev.,  vol.  51,  1912,  pp.  1215-1217.  Describes  and  criticizes  present 
methods  of  sampling  ore  in  place,  broken  ore  and  in  car  load  lots,  and 
suggests  new  methods. 

165.  Crowell  and  Musray,   Iron  ores  of  Lake  Superior.   1st.  ed.  1911,  pp.  186; 

2nd.  ed  in  1914,  pp.  257;  1917,  pp.  323;  4th  ed.  in  1920,  pp.  285. 
Sampling  iron  ores  on  pp.  28,  48,  79,  and  31,  respectively. 

166.  Crowfoot,  Arthur,  and  Donaldson,  K.H.  Leaching  and  concentrating  mixed 

copper  ores.  Eng,  and  Min.  Jour.,  vol.  110,  1920,  p.  471.   Sampling  a 
darge  dump  of  slime  by  Digging  pits. 

,167.   Crowfoot,  Arthur,  and  Witterran,  Ernest.  Developing  a  mill  flow-sheet  at 
Morenci,  Ariz.  Eng.  and  Min.  Jour.,  vol.  109,  1920,  p.  1349,  Method  of 
sampling  copper  tailings. 

167.  (a)  Curia,  J.H.  Some  aspects  of  ciine  valuation,  Eng.  and  Min,  Jour.,  vol. 

75,  1903,  p.  701.  Australian  engineers  did  not  sample  mines  properly 
when  examining  them.  High  assays  and  calculations, 

168.  Curtis,  A.H.  Examination  and  valuation  of  ruines,  Trans.  New  Zealand, Inst . 

Min.  Eng.,  vol.  2. 

169.  Dahlerus,  C.G.,  Akerblom,  K.A.,  Lundbohm,  H.  ana  others.  General  proftagnig. 

(Sampling  of  ores.)  Teknisk  Tidskrift,  vol.  24,  1894,  Section  kemi  cch 
metallurgi,  pp.  10-24.  abstr.  Jour.  Iron  and  Steel  Inst.,  vol.  46,  pt.  2, 
1895,  p.  390,  Abstract  refers  to  Dahlerus,  Nordstrom,  Akerblom;  Lundbohui, 
Dahlstrom,  Larson,  Landin,  etc.  Discusses  tha  sampling  of  ores  of  iron, 
zinc,  and  copper  and  methods  used. 

L70.  Dahlstrom,  R.   Sampling  ores.  Teknisk  Tidskrift,  vol.  24,  1894,  p.  20. 

L71.  Daman,  A.C.  Automatic  ore  sampler.  Eng.  and  Min.  Jour,,  vol.  103,  1917, 
p.  188. 

-15- 


172.  Davelor,   £.7.     Milling  plant   of  Alaska   Gastineau  Mininfc  Co.      iviin.    and  Mat. 

,    1§7,    sec.    11,    1920.      Sampling  results   on   19  mill  products. 

173.  EjYfnpjrt,   L  D,     Automatic  sand  sampler.     Eng.   and  Min.   Jour.,   vol.   96,    1913, 

p.    69.     Describes  device  for  sampling  discharge  from  Dorr   classifier. 

174.  Day,   D.E  .     Oil-shale  and  the  engineer.     Eng.   ana  Min.  Jour.,   vol.    110,    1^0, 

p.    1182,      Drilling  and   sampling   shale. 

1.75.     Ttean,   E.W.     Properties  of   typical  cruae  oils  from  Eastern_producint  fields 
of  United  States.     Bureau  of  Mines  Serials  2202  and  2235,    1321.     Brijf 
mention  of  method  of   sampline. 

176.  Decoto,   L.A.     Valuation  of  placer  ground.     Min.   and  Sci  ,  Press,  vol.   108, 

1914,   p,   773.     Drill-hole   samples  calculations, 

177.  Degcutin,  K.      L1  etude  pratique  aes  irdnerais  auriferes  principalnient  dans  les 

colonies  et  pays  isoles,    (Practical   study  of  gold  minerals,    chiefly  in  tne 
colonies  and  isolated  countries.)     Bull,   de  la  Soc.   ie  lf  Industrie  minerals 
ser,   4,   te.   5,    1306,   p.   1167.     Describes  crushing,    screening  of  ores,   and 
reducing  size  of   samples. 

173.     Kalb,    Court  ensy.      Sacramento  Hill  disseminated  copper  deposit   -   I.     Min.   and 
Sci.   Press,   vol,    116,    1918,   pp.    o49-c54.     Describes  prospect  sanpling  of 
part  of  the  Copper  Queen  mine,  Irfcsona,  and  gives  detail  of  a  sample   splitte: 

179.     Delamater,    G.R.      Standardization  in  coal  washing,     Mines  and  Minerals,  vol. 
32,    1911-1912,   pp.   461-46o.      Describes  experiments  to  determine  hov,  fine 
a  sample  must  be  crushed  to  givi   satisfactory  results. 


180,     Del  Mar,   Algernon.      Simple  automatic  sampling  device,     Eng.   and  irtin.   Jour., 
vcl,    90,    1910,   p.    60.      Deacribes  a  tailing  sampler  used  at   the  Bunker  Hill 
Mill. 

180.  (a)     __  .      Stamp-milling.      1st,   ed.,   1912,   p.   134.     Ail  Lai  11 

samples   shoudd  be  taken  automatically.     Tv.'o  tailing  samplers  Bbov^i  . 

181.  Delprat,    G.D.     Ore   treatment  at  Broken  Hill  Proprietory,   Australia.     Trans. 

Aust.   I.  M.  E.,-vol.   XII,    1907,  p.   4.      Scoop   samples  taken  hourly  by  hand, 
and  found  to   be  reliable, 

182.  Denrnachie,   W.J.N.     The  theory  and  practice  of   sampling  and  calculation  of 

ore  reserves,     Min,   Jour,,   vol,   lOi,    1314,   pp.   247-249,   291-222.      Dis- 
.  cusses  possible  dif  f  ica.;.ties  of   samples  of  a  gold  vein  and  gives  several 
methods  for  keeping  records. 

Dennis,   F.J.     Examination  of  dredging  properties.     AM.   Inst.  Min,   En^,.  Bull. 
64,    1912,   pp.   4*07-410.      Discusses  proper  metliod. 

Denny,   G.A..     Estimation  and  valuation  cf  ere  reserves,     Trans.  Mexican  Inst. 
M.   and  M.  No.   2,    1S10-1911,  p.    11.     A  treatise  on  methods  of   sailing 
calculations  of  reserves.     Methods  applicable  in  certain  cases  are   often 
used  as  though  universally  suitable  whereas  errors  arise  from  such  pro- 
•  cedurs  . 

-16- 


184.   (a)  _  .  Mine  sampling.  En^,  and  Min,  Jour,,  vol.  75,  1903, 
p.  960.  Sampling  and  recording  at  ths  Meyer  and  Gharlton  gold  mine, 
Transvaal.  This  is  carried  out  in  great  detail. 

184.   (b)  _  _^,  Observations  on  sampling,  computation  of  assay-aver 
ages,  and  relation  of  assay-value  to  recovery-  value  as  applied  to  ban 
ket  mining  in  the  Transvaal.  Trans.  Inst.  Min,  Eng.,  vol.  19,  13S>»- 
1900,  pp.  29*-316;  discussion,  pp.  316-320,  Gives  procedure  in  sampling 

184.  (c)  __^_  _  .  Some  observations  bearing  on  valuation  of  orebodies. 

Trans.  Mexican  Inst-.  M.,&  M.  ,  No.  1,  1909-1910,  p.  147.  Importance  and 
difficulty  of  sampling  discussed,  and  numerous  examples  of  orabodies 
shown.  Discussed  in  No.  2,  1910-1911,  p.  1,  by  Vdlliam  Crosley. 

185.  Deutman,  E.G.  Roasting  and  magnetic  separation  of  Wisconsin  zinc  ores. 

Eng.  and  Min.  Jour.,  vol.  107,  1919,  p.  1107.  Concentrates  are  sampled 
by  Blotted  pipes,  covered  with  a  sheath,  which  is  pulled  off  when  the 
pipe  is  in  position,  allowing  the  s^uLple  to  fall  into  the  slots. 


186.  Dewey,  F.P.  Assay  and  valuation  of  gold  bullion.  Trans.  Am.  Inst.  Min. 

Eng.,  -vol.  40,  1909,  pp.  780-797;  Report  of  the  Director  of  the  Min*, 
1909,  pp.  27-36. 

187.  _  .  Direct  determination  of  small  amounts  of  platinum  in  ore  and 

bullion.  Trans.  Am,  Inst.  Min.  Eng.,  vol.  43,  1912,  pp.  578-591. 
Describes  tuethod  of  sampling  molten  auriferous  copper  bullion,  p,  588. 

188.  ___  ^  Sampling  of  gold  bullion,  Trans.  Am.  Inst,  Min.  Enfe.,  vol.  44, 

1912,  pp.  853-879;  discussion,  pp.  879-882. 

189.  Dickenson,  E.H.  Grab  sampling.  Sch.  Mines  Quart.,  vol.  35,  1913,  pp.  55- 

56.  Discusses  errors  in  grab  sampling  copper  ore, 


190.  Dickenson,  E.H.,  and  Volker,  H.J.  Samples  and  their  interpretation. 

and  Min,  Jour.,  vol.  101,  1916,  pp.  933-936.  Outlines  methods  of 
plotting  assay  taaps  and  showing  value  of  ore,  width,  and  tonnage.  De-  - 
scribes  keeping  of  notes. 

191.  Dickson.H.C.  Crucible-assaying  of  £old-ores.  Trans.  Inst.  Min.  Eng., 

vol.  22,  1901-02,  pp.  673-690;  discussion,  vol.  23,  1901-02,  p.  698. 
Describes  taking  and  preparing  vein  samples,  pp.  674—676. 

192.  Dixon,  J.T.  Valuation  of  placer  ground,  Min.  and  Sci  .  Press,  vol.  109, 

1914,  p.  962,  Drill-hole  samples  calculations. 

193.  Dodd,  W,G.  Ore  or  pulp  sampler.  U.S.  Pat.  693,690.  Min,  and  Sci.  Press, 

vol.  84,  1902,  p.  317,  Describes  an  improved  autouc  tic  tailings  sampler, 

194.  Dods,  R.  Sampling.   Chem.  Engineer,  Feb.  1910,  vol.  11,  pp.  58-60. 

Describes  saiupling  of  auriferous  and  argentiferous  lead  bullion  and 
automatic  samplers, 


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194.  (a)     Dolbear,    S^uel  Kff    ana.  Burch,   Albert,        Chroma,  to.   Pamphlet  puoliahci 

by  Min.    and  Sci.   Press   in  1917.      Complete  inf  or  nation  oi"  prcsec  co:  /',ft. 
sa^plin&,    and  shipping  chroue  , 

195.  Doolittle,    C.H.    and  Jarvis,    R.P.        Pyritic   s^eltin^,  at   Lsadville,      Tians. 

Av..  Inst.  Min.  Eng.,  vol.  41,  IS  10,  pp.  709-722.  Describes  Scunplir..^ 
methods,  p.  715. 

196.  Dougherty,  G.T.     Bullion   sa.-plin^  ?na  assayin^.      En0.    ana  Min.    Jour.,    vol. 

41,    1866,   p.   4.      Describes  a  puncher  for   sa^plin^"  car  loads   of   ore. 

196.  (a)      Dub,    G.D.,   and  Moses,    F.G-.     Mininfc  and  prep/.rin^  domestic  fcraphite 

for  crucible  use.  U.S.  Bureau  of  fvdnes  Bull.  112,  1920,  pp.  74,  On 
pages  36-38  is  described  and  illustrated  the  u.ethod  of  and  apparatus 
for  sampling  sacked  graphite. 

197.  Du.:.oulin  ,  V.'.L.        Crushing  practice,   New  Cornelia  Copper  Co.     Bull.    152, 

Aug.    1919,    A.  I  .   M.   &  iVl.   E.   p.  -1203.      A  1  per  cent   sample  of   5000   tons 
daily  is   taken. 

198.  Duschak,    L.H.    and  Schuelte,    C.N.      Co  niensint    quicksilver  from  furnace  ^p.ses. 

Tecsrhnical  Paper,    96,   U.S.   Bureau  of   Tfines,    1919,    29  pp.;   Min,   and  Sci. 
Press,   vol.    117,    1918,  pp.   315-323.      Describes  procedure  in   sa^plin^    ana 
preparation  of   sample  for  analysis. 

199.  Eastauth,    F.A.      Effect   of  different  methods   of   crushin_    on   the  ash  of   coke. 

Trans.    Inst.    Min.   &  Met.  ,  vol.   2-,    1914-15,    pp.   483—  *83.      Descrioes 
experiments  to   show  the  effect   of  different  methods   of  praparin^  sainples. 

200.  Easter,   H.F.        Ls?.d  Sceltini   at  El  Paso.     Trans.   Ac.,   Inst.   Min.   Eng.,   vol. 

52,    1916,   pp.   715-729.     Describes   sampling  base  bullion,   pp.   717. 

201.  Ediiian,   J.A.        Studies  in  eroli-.idllin£.      Discusses   relation  of    size  ^rain  to 

foold  content.     Min.   ana  Sci.   Press,    vol.    67,    1693,   p.    277. 

202.  Eau.aniLS,   H.R,        Assaying  at  Globe  and  Phoenix  fcold  mine,   Roaesia.     Min,   and 

Sci.   Press,   vol.    121,    1920,   p,  -±52.     Preparation  of   samples. 

203.  Edwirds,   Edward.      Tin   sluicing  in  Tasmania.      Trans.   Aust  .   j.   &.    E.  ,   vol.    15, 

1911,   p.    276.      Calculating  tin  deposits  by  face   sailing,,    tunnels,    cores, 
and   shafts. 

204.  fibers,   J.H.       Application  of  air-drills  to  ^.ine   samplia^.      Enfc.   ana  iViin. 

Jour.,   vol.    108,    191*,   p.   358.      A   row  of    shallow  holes   is  drilled   • 
and  the  intervening  ribs  of  ore  are   cut, 

205.  Efeleston,    T,      Metallurgy  cf    silver,    bold  and  mercuryrin   the  United  States. 

7,    2v.      Discusses   sjJLplin^  ,    vol.    1,   pp.    66-  7o;    vol.    *.,    pp. 


206.     Ehrcann,   L.     Notes  on   sa^plijrife  analyzing  and   treating   slide.     Proceed. 

and  Met.   Soc.    of   South  Africa,    vol.   ?,    1^97-99,    pp.    697-705.      Min.    ana 
Sci.   Press,   vol.   79,    1899,    p.   256-267.      Describes   auto^tic   sampler  for 
sliu.es  and  gives  causes  cf  errors  in   assays. 


-18- 


20?.  Elder,  R.B.  An  automatic  pulp  sampler.  En^  .  ?.nd  Min.  Jour.,  vol.  101, 
1916,  pp.  524-526. 

20d.  Method  of  obtaining  representative  coal  samples,  Vol.  66,  1915,  pp.  366- 
367.  Describes  briefly  revolving  drum  in  side  of  coal  finite  to  rai^ve 
sanple  , 

209.  Electrical  World.   Convenient  nethoas  r.na  devices  for  sampling,  coal.  Vol. 

68,  1916,  p.  426.  Describes  three  automatic  samplers. 

210.  Elliot,  R.H.  Relative  errors  in  alluvial  sampling.  Min,  and  Sci  .  Press, 

vol.  Ill,  1915,  p.  465.  Criticizes  article  by  C.S.  Haley. 

211.  Ecaniinger,  W.G.  Sampling  in  a  id  11.  Min.  and  Sci,  Press,  vol.  122,  1921, 

p.  152.  Method  of  taking  pulp  samples  at  Rochester,  Nevada. 

212.  Engineering  and  Mining  Journal  (anonymous).  Anaconaa  Copper  Mining  Go's 

new  reduction  works,  Vol.  73,  1902,  pp.  311-313.  Describes  saajplin^ 
department  . 

213.  _______   ,  Anaconaa  sample  mixer.   Vol. 

92,    1911  ,  p.   739.     Describes    nixer  for  pulp   samples. 

213.  (a)  __  ___  .  A  prorLisin^  gold  field,  ana 
tests  by  s^plin^.,  vol.  76,  1903,  p.  69»  Experiences  in  hana  sa^plin^, 
and  uill  tests  on  a  gold-bearing  quart  zite.Gostilla  County,  Colo. 

'214.     ______________   .     Arizona  Eercules  Copper  Go's 

plant.     Vol.   107,    1919,   p.    1117.     Flow-sheet   shows  position  of   sampling 
machines  . 

215.     ___________  ,      A  promising  bold  field  and 

tests  by  sampling.     Vol.   76,    1903,   pp.   89-90.     Discusses  discrepancies 
in  hand  and  mill   sampling. 


216,  _________  .  A  question  of  sa^plin^.  Vol. 

73,  1902,  p.  623.  Discusses  controversy  between  iLines  and  smelter  as  to 
whether  the  ore  shall  be  crushed  fine  for  sampling. 

217.  ___________    _„  Assay  of  base  bullion.  Vol. 

33,  1882,  p.  259,  290,  vol.  3'i,  1862,  pp.  6,  133.  Discusses  proper 
methods  of  sarLplir^  and  assaying  bars  of  lead  bullion, 


213.  __  ^  _____  _.  Automatic  Mine  air  sampler. 

Vol,  91,  1911,  p.  647.  Describes  a  device  that  samples  inne  air  auto 
matically  at  definite  intervals, 

219.  __________  ___    Automatic  ore-pulp  sampler  as 

shown  in  report  by  the  Cornish  (Eitland)  Sxib-co^imttee  on  Tin  ana  T'un^s 
Vol,  107,  1919,  p.  412.  This  is  a  -lot  tippler,  recommended  after  u.any 
tests.  The  nuuiber  of  cuts  per  hour  is  twenty, 


-19- 


.     Automatic  ore   sampler.     Vol.    36,    150&, 


p.    Idl.     Description  of  aevice  used  ~t  Beaccnsf iold, 


_  .      Automatic  ssuipler.      Vol.    *3,    1*12,   p. 
"'" 


ic  sailer  for  tailings. 


. 

36l   1,12,    p..   660-666.      Describes  an 


222  .     Brid^ei-an1  s  assay  office   BC^V.**^ 

~Hchlne.     Vol.    61,  18*675^5437     Doscri  bes  a  s.-all  nachine  for  use  in 

assay  offices. 

223 .     Byrnes'    autou-atic  pulp -sampling 

Machine"]     Vol.   75,  1*02,   p.   468.     Describes  a  machine  so  placea  in  the 

system  of   launders  and  pipes  that   it   can  take  the  entire^flow  from 

crushing  ^achi  nsry  or  tables  ?.nd   ^ive  an  average  sou  definite  sample . 


226. 

cloth. 


.      Cole  sampler.      Vol.   o5,    1»0»,    P.    H* 

"Describes  machine  designed  to   sample  ore   crushed  to   1  or  If  inch  in  siz 

.      Clarkson's  sr^plint.  machine.      Vol.  5 

13*4,   p.   513~!      Describes  machine  with  a  revolvint  hopper  and  adjustable 
discharge  opening. 

.      Collecting  aine   samples.     Vol.   *4, 

1912,   p,   1025.      Recct-mends  use  of   round  pliable  basket   lined  with  oil 
cloth. 

227. .     Colliery  notes.      Vol.   63,    1*07,   p.   2<±c 

Gives  method  for  takin^   san^ples  of  mine  air. 

226. .      Compact  sao-ple   splitter.     Vol.    102, 

1*16,  p.   746.     Describes  a  portable   sample   splitter. 

22».  .     Co-operative   sampling  ana  assaying  of 

s^all  ininesT Vol.    62,   Ic96,   p.   242.     Discusses   importance  of  frequent 
saiaplinfc  by  a  trained  ^an,    ana  subgests  a  comoion  assay  office  for  a   - 
group  of   sL-all   riines-.  . 

22S.      (a) .      Driving  lab.    crushers.      Vol.    112,    1*21 

p.    177.     A  convenient  drive  for  laboratory  crusher  and   sample  6rinaer. 

.     Estimates  of  Mesabi  Range  orebodies, 

Minnesota,   vol.    110,    1*20,   p.   350.      Lay-out  of  drill-holes  in   sauplinb 
iron    "^re . 


230. 

iron  ore. 


231.  ______  ___  .  Filter  for  slice  sanples.  Vol.  *'?, 

1*11,  p.  ^31.  Describes  a  three  coapartuent  filter. 


232 


1*14,  p.  24. 


Flask  fcr  moisture  samples.   Vol.  *b, 


-20- 


233.  ____  .     Fracture  samples  of  furnace   slftfe.     Vrl.   97, 

1914,   p.    105,   1051,     Describes  judgin^  efficiency  of  furnace  by  exam 
ination  of  fractures  of   &!«*,_. 

234.  ______  .     Flood,  auton^tic  sampler.     Vol.   94,    1912,   p. 

1217. 

235.  _  .  Francis  autoc-atic  pulp  sampler.  Vol.  102, 

1916,  p.  427-428.  Describes  a  sampler  of  tne  traveling  slot  type,  with 
a  biltine-bcx  niotcr. 

.  Great  Cobar  smelting  works.  Vol.  65,  1906, 


pp.   950-956.      Describes  and  gives  plans  of   the   s^.plink  works. 

237,     ___  _____  _  •     Grinding  samples  fcr  ass=iy.     Vol.   94,    1912, 

p.   <*46,  53<»,    728.      Describes  experiments  proving   that  tne  finer  tne 
the  lower  the  ^etal  product. 


238  •     __  .  _  .     Hamilton  automatic  sampler.     Vol.   101,    1*16, 
p.    603.     Describes  a  rrachine   that  autocratically  selects   1/96  of  the 
original  sample. 

239.  _  _____  _  .     Handbook  of  filing  details.     1914,   p.   425. 

"Sampling,"  pp.    1-30. 

240.  _______  __  .      liiprcved  teeter-box  sac/pier.     Vol.    94,    1912, 

p.   303.     Describes  ?   teeter-box  sarr.pl  or  that   is  regulated  by  plunders 
and  cylinders  and  the   strearr.  of  water  that   is  fed  to  the   teeter-bc*. 

2*1.     _____  ____  .     Metallic*.      Vol.   66,    1909,  p.   226.     De 

scribes  a  canvas  funnel   tied  at   the  bottom  for  catching  cine  samples. 

242.     _  _  Method  of   sacpling.,  Horn  Silver  Mine,   Utah. 

Vol.   26,    1979,    p.   352.      Describes  oat  hod  in  which  500  to  600  Ibs  .   of  ore 
was  picked  loose  free:  every  25  to  50  feet,    crushed,    thoroughly  a,ixed, 
and  40  to  50  Ibs.    taken  as  a  s-usple. 

2<±3.      __________  _  .     Methoa  cf    satpliru.  ^.ine  dust.     Vol.    Ill, 

1921,   p.   506.      Dust  was  Cc.ugnt   by  J.A.   wcCrae  in  a  tube    ccr.taining  cane 
sut,ar  . 

2<*4.      _  __  .     Mine   sa^plin^..      Vol.    7o,    1903,  pp.    960-962; 


vol.   76,    1903,    p.   <*,   45,   60,    116.     Brief   ccn^ents  by  different  mining 
engineers. 

245.  ___  .     New  sampling  .^c^  ir.es.     Vol.   7y,    1^05,   p_?, 

347.      Describes  a  sciall   roll-jaw  crusher  for  use  in  laboratories. 

246.  _  .     New  saqplin^  plant   at  Hamburg,    Ger^^ny.     Vcl. 

100,    1915,   pp.    140-141;    ccc_xent  ,   p.   319.      Describe      .      :     .=   ar.i   z 
tus  for  sampling  pyrites. 


-21- 


247.  .      Now   sampling  plant   at  Tonopan.      Vol.    '  ^, 

'I9^o,    p.  ~57 T~ 

248,  .      Ore   s'£Q)?.int.  and  v/ei'-.hint,  at    the  lo.pisr'n^ 

~miiT~ Vol7^77"l9147"pp .    1293-1394.      Describes  methods  used. 

249  4  .     Overflow  indicator  for  sample  bin,      Vol.    ^8, 

l9l47~pT  117. 

250,  .   Rapid  sampling  filtar.  vol.  90,  1910,  p.  819. 

Describes  a  filter  cf  silica  sponge. 

251. .  Regulations  for  ScuLplinb  at  tne  Trail  Smelter 

B.C.   Vol,  106,  1919,  p.  223. 

252. .   Salting.  Vol.  110,  1*20,  p»  507.   Any  en 
gineer  may  have  his  samples  salted. 

2o3. .  Salting  oil  properties.  Vol.  so,  1913,  pp. 

25ft. ,   Sample  reducing  u^chine,  Vol.  ^3,  1^12,  p. 


255. .      Sampler  for  cyanide  plants.      Todd's   or 

"  Horue stake  sampler,      Vcl,   93,    1912,   p.   541.      Describes  and  gives  detail  of 
sand- sampling  device. 

256,  .   Sampling  accident  at  Hoosier  Mine,  Colorado, 

due  to  old  bulkheads  and  insecure  ladders.   Vol.  103,  1917,  p.  642. 

256.  (a)  Sacpling  and  estimation  of  ore  in  a  mine,  Ene,  and  Min.  Jour.  ,  vol.  75 

1903,  p.  513,   A  c.ine  to  be  sampled  should  first  be  examined  generally; 
trustworthy  assistants  are  essential;  pairs  of  samplers  to  take  alternate 
samples;  dark  clearly  all  places  s^Lpled;  reduce  samples  as  soon  as  possi 
ble,  use  a  factor  of  safety  in  estimates, 

257. .   Sampling  a  wet  level.  Vol.  75,  1903,  pp. 

436-437,   Describes  ana  ^.ives  sketch  of  flume  used. 

256. .  Sampling  by  borings  from  rock-drills.  Vol. 

89,  1910,  p.  710.  Method  of  collecting  samples  at  tne  Moiint  Morgan  Mine, 
Queensland,  Also  discusses  chip  sampling  and  diamond  drill  sampling. 

259. .  Sampling  by  machine.  Vol.  86,  1908,  p.  101; 

vol.  87,  1909,  pp.  5i6-ol7.  Discussion  of  proper  and  improper  sampling 
machines. 

260. .   Samp.1in£,  copper  by  granulation.   Vol.  90, 

1910,  p,  ll-ib.  Discusses  probable  source  of  error  introduced  by  sampling 
converter  charges  by  a  ladle  sample  granulated  into  water. 

261. .   Sampling  devices.   Vol.  87,  1909,  p.  216, 

A  chair  for  the  sampler  and  a  bag  for  catching  samples. 

-22- 


__    Sampling  f  ro  *ii  lip  of  a  Challenge  feeder.  Vol. 
^4,  1*12,  p.  640.  Describes  device  for  taking  pulp  sample. 

____  .  _  .  Samplinb  inported  ores.  Treasury  dep?.rtu.ent  , 
""Secretary1  s  decisions,  March  73  1693,   Vol.  55,  1893,  p.  416.  Treasury 
decision  on  testin^  carloads  of  ore. 

___  .   Saoplin£,  in  Western  Australia.  Vo.l  3<S,  1908, 
~"~p  .  340l  Jour,  Chamber  of  Mines,  W.A.,  May,  1908,  p  —  .  Describes 
methods  of  sampling  of  ore  in  place. 

_  _  ___  •  __  .  Saitpling,  leaa  concentrates.  Vol.  69,  1*10, 

p.  1216;  vol.  90,  1910,  p.  253.  Describes  <and  £ives  sketches  of  device 
.  fcr  samplins  car  load  lots  of  fine  lead  concentrate. 

__  .  Sampling  ore.  Vol.  94,  1912,  pp.  15*-160, 
198,  390.  Discusses  inaccuracies  of  hand  sampling. 

___  _  _  ,  Sampling  ore.  Vol.  14,  1672,  p.  *.  Discusses 
advantages  of  mechanical  sampling  over  hana  sampling. 

__  •  __  .  sampling  oreboaies.  Vol.  60,  lc*»,  p.  672. 
Discusses  various  methods. 

269.  ____  .  Satnple-quartering  table,  Vol.  103,  1917,  p. 

350.  Describes  a  table  and  hooa  for  the  dustless  quartering  of  samples. 

270.  ______  .  Sai4plin£,  practice  at  Miami  Copper  mine,  Ariz,. 

"""Vol.'  94,  1912,  p.  540. 

271.  _____  ____  .  Sampling-screen  driven  by  compressed  air. 

ToT.  90,  1910,  p.  63  1.  Description  of  tne  device. 

272.  __  _____  __  •  Sampling  spelter.  Vol.  102,  1916,  pp.  1*6, 

331,  432.  Discusses  standards  of  the  American  Society  for  testing 
materials  and  the  neea  for  contracts  between  buyer  ana  seller. 

273.  .  Saaiplinb  syaposiu.-,,  see  733  a. 


274.  __  __  .   Seals  for  oine  samples.  Vol.  101,  1^16,  p. 

439  .  Describes  method  of  sealing  bags  of  samples  • 

275.  _____  ,  Sheridan  Oscillating  ore  sampler.  Vol.  94, 

19127  p,  932."" 

276.  ___   __  .  Smelting  ana.  ore-sales  investigations  in 

Colorado.  Vol.  105,  1*18,  pp.  536-543.  Describes  uiill  sampling  icethoas 
in  excerpt  from  report  of  O.K.  Whi  taker  to  the  State  Ccoaaittee. 

277.  _  ______    Solution  sampler  ana  weigher.  Vol.  94,  1912, 

pp.  116*-1170.  Describes  a  device  for  sampling  cyaniae  solutions. 


-23- 


276.  ___  _  __  .   Standard,  specifications  for  copper  wire  bar*  . 

Vol.  93,  1912,  p.  lol.  Gives  rulas  fcr  sampling  copper  v.ire  b^rs,  c,,<: 
slabs,  billets,  ingots  »n~  i^gct  b^rs,  given  by  American  Society  i'cr 
Testing  Materials  and  thg  Intarnatic  n*l  Association  fcr  Testing  M-^ti.-ials  , 


279.  _____  _____  ______  .   Ste-im-  jacketed  drying  table  for  tailing,  sa..'- 

~ples7~  Vol.    100,    1^15,   p.   969. 

260.  ____  .      Taking  samples  from  arill-holes.     Vol  ,  y*  , 

1912,   p.   61. 

261.  __  .  Van  Mater  Sc,mpler.  Vol.  od,  1909,  pp.  1262- 

1263.  Describes  apparatus  designed,  for  use  in  sriall 


262.  __  ___  .  When  sampling  fails.  Vol.  77,  1904,  p,  593. 

Discusses  impracticability  of  any  systei-  for  erratic  ore  bodies  or  hurried 
investigations  . 

233.  _____  ,  Will  it  co..e  to  tnis.  Vol.  107,  1919,  p.  795. 
A  satire  on  aiy  en^ineosrs  ..Ine  report,  including  3  stanzas  on  sampling. 

264.  Erickson,  E.T,  Detecting  small  quantities  of  petroleum,  Eng.  and  Min.  Jcur. 
Vol.  112,  1921,  p.  o9.  SaL':plirife  oil-bearing  rock  for  analysis. 

2o5.  Eustis,  V/.E.C.   Comparison  f  various  methods  of  copper  analysis.  Trans, 
Am.  Inst.  Min,  Enb.  ,  vol,  11,  1863,  pp.  120-122,   Describes  method  of 
preparing  the  samples  of  about  1  per  cent  of  total  contents. 

286.  Eye,  C.M.,  and  Dodd,  M.F,  •  Millint  at  Ben^uet  Consolidated,  Philippines, 
Min.  and  Sci.  Press,  vol.  121,  1920,  p.  cs46.  Erratic  samples  froi-  ore- 
feeders. 

257,  Fansett,  G.R.   Sampling  mineralized  veins.  Arizona  State  Bur.  of  Mines, 

Bull.  66,  Ser.  3,  1917,  5pp  ,   Gives  airections  for  sampling  ana  for  meas 
uring  the  width  of  an  orebody. 

263.  Farish,  J.B,   Ways  that  are  dark.   Min.  and  Sci.  Press,  vol.  110,  1915,  pp. 

576-579.  Describes  experiences  with  salted  samples  and  other  frauds, 

259.  Farrell  ,  J.H.  Kansanshi  mine  and  mine  sampling,,  Min.  ana  Sci.  Press,  vol. 
96,  1908,  pp.  52S-530,  Describes  valuation  of  copper  ore  in  place  in 
northwestern  Roiesia. 

290.  ____  .  Mining  exploration.  Min.  and  Sci.  Press,  vol.  120,  1920, 

p.  269.  Hew  sampling  is  regardeu.  by  owners  of  small  mines.   Discussion 
on  same  by  W.C.  Frazier,  p.  407. 

291.  Fay,  A,H.  Geology  and  Mining  of  the  tin-deposits.-  Cape  Prince  of  Wales, 

Alaska.   Trans.  Am.  Inst.  Min.  Eng.,  vol.  38,  1907,  pp.  664-662.   Describes 
methods  of  sampling  and  assaying, 


292  .  _  .  Glossary  of  minin^  terus.  Bull.  ^5,  p.  bd9.  Definitions  of 
sampling. 


-24- 


29«.   (a)  Fawns,  Sydney.  Tin  deposits  of  thj  world,  3rd.  ea.,  1920.  Numerous 
references  to  sampling  of  ores  and  metallic  tin. 


293.  Feust,  Arthur,  Practic,.!  points  on  sampling.  Min,  ^arid  Sci.  Press,  vol. 

110,  1915,  pp.  368-370.  Describes  practical  methods  for  taking,  ana 
cutting  clown  mine  samples, 

294.  Fields,  H.B.  A  laundar-s^upler.  Min.  and  Sci.  Press,  vol.  Ill,  1915,  p. 
,  .  919.  Describes  device  for  sampling  pulp. 

235.  Finlay,  J.R.  Mine  valuation.  Eng.  ana  Min.  Jour,,  vol.  93,  pp.  1238-1239, 
1912.  Biscussjs  factors  be-.ring  on  the  value  of  undeveloped  mining 
property.. 

296,  Fieldner,  A.C.  Accuracy  ana  limitations  of  coal  analysis.  Proceed.  Coal 
Min.  Inst.  An:.,  1^12,  pp.  2«±5-281.  Discusses  sampling,  pp.'  270-2ol. 

297'  ____  .  Notes  on  sampling  ana  analysis  of  coal.  U.S.  Bureau  of 

Mines,  Tech.  Paper  76,  1914,  61pp.  Discusses  factors  affectirig  accuracy 
of  sampling  and  analysis  and  outlines  methods  used  by  the  Bureau  'cf  Mines 


298 


Preparation  of  laboratory  samples.  Jour.  Ind,  and 


Chem.,  vol.  5,  1913,  pp.  518-521,  Discusses  size  of  samples,  shipping 
containers  and  two  methods  of  sampling  according  to  size  of  coal. 


299.  _  __  _•»  anci  Katz,  S,H.  Gases  produced  from  carbon  tetrachloriae 

and  foamite  fire  extinguishers  in  mines.  Bureau  of  Mines  Serial  2262, 
June  1921.  Plan  shews  position  of  taking  gas  samples. 

300.  ;  __  .,  and  Selvife,  W.A.  Det  emanation  of  moisture  in  coke.  Tech. 

Paper  148,  1917.  Method  of  handling  samples  during  tests. 

301.  ___  .,  Smith,  H.I.,  Fay,  A.H.,  and  Sanford,  Samuel.   Analysis  of 

mine  and  car  samples  of  coal  collected  in  the  fiscal  years  1911  to  1913. 
Bull.  85,  U.S.  Bureau  of  Mines,  1914,  44<>  ppp,  Describes  methods  of 
collecting  and  analyzing  samples  of  coal. 

302.  _  ,,  and  Smith,  H.I.,  Paul,  W.J.  and  Sanford,  Samuel.  Analyses 

of  mine  and  c^r  samples  of  coal  collected  in  the  fiscal  years  1913  to 
1916.  Bull.  123,  U.S.  Bureau  of  Mines,  1917,  456  pp.  Give  analyses  and 
describes  samples. 

303.  Fischer,  F.  Preparation  of  ore  sauples  for  analysis.  Stahl  and  Eisen, 

vol.  32,  1912,  pp.  1408-1409.  Cnem.  abst  .  ,  vol.  6,  1912,  p.  32^6. 
Points  out  necessity  of  fine  crushing  and  recommends  at  least  8  mean 
(493  holes  per  sq..  cue.). 

304.  Fischer}  F.W,  Flue-^as  collector.  Power,  vol.  42,  1915,  pp.  489-4»0,  763. 

Describes  an  inexpensive  ana  portable  sampler  for  flue 


305.  Fitch,  E.O,,Jr.  How  vanadium  affects  pig  iron;  a  series  of  .  tests  on  five 
samples  of  commercial  pig  iron  containing  vanadium.  Iron  Trade  Rev., 
vol.  55,  1914,  pp.  72-74,  Describes  making  of  test  bars. 

-25- 


306.  Fleming,  tt.H.  Determination  of  oxygen  in  iron  and  steel;  va3ue  of  existing 

aethods  for  det  jri:.ir,ut:lon  .  Proc.  An.,  3oc,  for  TortvAi.  Materials,  vol.  13. 
1913,  pp.  4-76-^cjb;  abr-,tr.  in  !~?r.  Trade  Review,  vol,  i?'5,  lvj-5,  rp.  120- 
130.   Discusses  methods  of  sampling  and  faive3  micro-photographs  of  sections 
of  iron  ingots, 

307.  Flint,  H.P.  \Viro  sanplar  for  cyanide  solution,   £n«,  ,  and  Mm.  Jour.,  vol. 

95,  1913,  p.  70:?.   Describes  Apparatus, 

30o.  Fcote,  F.W.   Cornwall  autom./.tic  satr.pler.   EnL  ,  and  Mi  n.  Jour.,  vol.  10^, 
,  p.  ISOo  .   sampling  fallin^  ore  that  has  p-.ssed  rolls. 

Doep-lsvel  developrsent  at  nspen,  Colo.   Eng.  and  Min.  Jour., 


vol.  10<5,  1919,  p,,  176.   sampling  in  Su-ug^ler  Leasin 

•  Sample  bags  and  sample  filin-.  En^.  and'  Min.  Jour.,  vol.  100, 
1»15,  p.  58.  Describes  canvas  bat.s.  for  Carrying  saa_  les  ana  rack  for  the 


311.  Forbes,  C.R.  Bibliography  of  Mining.  Min.  Inu.  ,  vol.  21,  1»12.   Gives 

bibliography  for  1^12  on  sampling  and  valuation,  pp.  912-913. 

312.  Forbes,  D.L.H.  Treatment  of  complex  silver-ore  at  the  Lucky  Tiger  mine, 

El  Tigre,  Sonora,  Mexico.  Trans.  Aiu,  Inst.  Min.  Eng,,  vol,  4-3,  192.2  ,  pp. 
471-511.  Describes  breaker  plant  and  sampling  device  with  figure  of 
latter. 

***•  ____  _  .'  Treatment  of  gold  ore  at  Doa;e  mine,  South  Porcupine,  Ontario 
Can.  Min,  Jour.,  vol.  35,  1914,  pp.  77-35,   Describes  methods  of  sampling 
and  weighing,  pp.  83-84. 

314.  Forster,  K,   Prcbenehmen  und  Erzreservenberuteilung  in  den  Goldfeldern 

Transvaals.   (Sampling  and  analysis  of  ore  reserves  in  the  eold  fields  of 
the  Transvaal)  .   Discusses  sampling  and  estimating  ore  in  place  in  the 
gold  fields  of  the  Transvaal.  Met&ll.  &  Srz,  vol.  11,  1914,  pp. 


31o,  Foster,  C.  Le  Neve,   Treatise  on  ore  and  stone  minin  ,   1910,  799  pp.  Dis 
cusses  sarnplint,  pp.  676-680. 

316.  Foster,  T.J.   Coal  and  metal  miners'  pocketbook.   10th.  ea.,  1*05,  637  pp. 

Discusses  sampling  and  estimating  the  amount  of  mineral  available,  Pp  . 
251-252.  Sampling  coal,  pp.  173-174. 

317.  Francis,  W.H.S..  Francis  automatic  pulp  sampler.  Ene.  and  Min.  Jour.,  vol. 

102,  1916,  pp.  427-426. 

31o,  Frazer,  J.C.W,  and  Hoff  .ran,  E.J.  Apparatus  and  methods  for  the  sanipU*L  ana 
analysis  of  furnace  gases.  Bull.  12,  U.S.  Bureau  of  Mines,  1*11,  22  pp. 
Describes  methods  of  taking  "continuous"  am"  "instantaneous"  samples  ana 
the  special  apparatus  designed  for  such  sampling. 

318.  (a)  Frear,  William,  and  Erb,  E.S.  Stuay  in  soil  sampling.  Jour.  Assoc. 

f,  Agr.  Cheui.,  vol.  4,  1920,  p.  9b,   Influence  of  method  of  collecting 
sampling  soil  sercples  has  upon  the  values  obtained  in  their  analysis 
is  sho^wi  by  results  obtained  in  the  analysis  of  different  sets  of  samples. 
(Penn.  Agr.  Expt.  Station). 


-26- 


9.  Frerrch,  A.T.   Sampling  ore.  Win.  and  Sci  <  Press,  vol.  97,  1908,  p?  .  666- 
667.   Defends  coning  and  quartering  against  alternate  shovel  o^h;,a. 

:0«  Tuchere,  Leon.   Sac.plinb.  One  of  42  lectures  printed  on  varicn?  subjects 
by  different  engineers  for  instruction  of  employees  of  Copper  Queen 
Branch,  Phelps  Dodge  Corp.,  Bisbee,  Ariz.,  1J19. 

51.  Fuld,  H.A.  Inaccuracies  cf  churn-drill  sampling,   En£,  and  Mm.  Jour,, 

vol.  69,  1910,  p.  953.  Gives  experience  in  prospecting  copper  deposits. 

22.  Fulton,  carles  H,  Buying  and  sellin^.  ores  and  metallurgical  products. 

U.S.  Bureau  of  Mines  Technical  Paper  83,  1915,   Sampling,  of  ores  ais- 
cussed  . 

23.  ______      _.  Manual  of  fire  assayinL.  2d  ed  .  1911,  219  pp.   Dis 

cusses  sampling,  pp.  36-41. 

24.  Furxan,  H.  van  F.  Manual  of  practical  assaying,  1=»10,  530  pp.   "Ore 

sampling'",  pp.  6-20,  420-421. 

25.  Fyfe,  Alex.  Metallurgical  process  of  the  V/aihi  Grand  Junction,  New  Zealand 

Trans.  Aust,  I.  M<  E.f  vol.  16,  1912,  p,  64.   Sampling,  of  the  silver- 
£.ola  ere  before  milling,;  samplers  ara  used. 

26.  Gahl,  Rudolf.  History  of  the  flotation  process  at  Inspiration,  Arizona. 

Met.  and  Chera.  En£  .  ,  vol.  15,  1^16,  pp.  393-405.   Describes  sampling  of 
oreboaies  t.o  determine  if  the  ere  could  be  treated  by  flotation. 

•27.  Gale,  Hcyt  S.   Saltpeter  in  Guatemala.  En^  .  and  Min,  Jour.,  vol.  107,  lily 
p.  1025.   Sampling  with  auger. 

i26v  Gardiner,  ft  .H  .  Geld  dredging.  Actual  recoveries  compared  with  estimates  , 
En&.  and  Min.  Jour.,  vol.  110,  1920,  p.  515.   Samplin^  ^ravel  by  churn- 
drill,  and  factors  against  accuracy. 


Garlick  ,  E.T.M,   Graphic  c.ethcd  cf  computing  mine  values.   Tr^s.     ^ 
I.  M.  E.,  vol.  15  (1),  1911,  p.  91.   Cutting  samples  and  corr-putint  values. 

Garthwaite,  E.H.  Mine  Sampling.  Eng,  and  Min.  Jour..,,  vol.  79,  1905,  p.  **30 
Describes  Sriiple  catcher  for  inaccessible  stopss  and  hi^h  drives. 


.   Scne  sampling  results.  Trans,  Inst .  Min.  ana  Met.,  vol. 

16,  1^06-07,  pp.  171-1-0;  discussion  pp.  1£0-1*4.   Discusses  proper  dis 
tance  between  ^ine  sauples,  especially  for  ^ol'l  veins. 

Gas  Ave.   Auto.uatic  coal  crusher  and  sampler,  vol.  39,.  1917,  p.  656.  De 
scribes  and  illustrates  the  machine. 

(a)  Gavin,  M,J.   Mining  oil-shale.  Prcc.  Am.  Min,  Congress,  vcl.  24, 
1921,  p.  497.  Difficulty  in  sampling  shale,  and  core-drilling  suggested. 

(b)  .   Oil- shale:   history  and  technology.  Bureau  of  Mines 

Bull.  210,  1921.  Saujplint.  and  testinL  of  shale  discussed,  incluainfc  a 
hint  to  take  samples  f ro*  belcw  expo sea  surfaces. 


-P7- 

*-'  * 


333.  Gavin,  M.J.,  Hill,  H.H.,  and.  Perdew,  V,,E.  Notes  en  the  oil-shale  inaustry 

Bureau  of  Mines  Serial  Kc  »  2256,  1921.  Considerable  care  is  required  in 
sampling  shale  deposits. 

334,  Geisiner  ,  E.S.  Ramsey  mine-  run  sampler,  Coal  Age,  vol.  11,  1917,  p.  60S 

Device  consists  of  a  scoop,  13  ft.  lonr  ,  made  from  16  in,  wrct  pipe.  ^ 
slot,  3  ft.  long,  is  cut  cut  at  the  top  half  at  one  end,  ana  when  pushed 
by  an  under  stream  of  ccal  it  will  collect  a  100-lb.  sample. 


Sampling  placer  ground.  ^nb%  gj^  uin.  Jour.,  vol.  91,  1911, 


p.  3<*5.  Criticizes  method  described  by  T«L.  parter, 

336.  Geissler,  — .   The  Geissler  sai..pling  machine.  Eng.  and  Mi n.  Jour.,  vol.  69, 
1900,  p.  113;  Colliery  Guardian,  vol.  79,  1900,  p.  <±62;  German  patents 
100,  067,  1893  and  100,  516,  lob>8 .  Describes  a  machine  for  saJiplinfc  ail 
kinds  of  ores  as  well  ?.s  coke,  phosphate,  salt,  soda,  and  cement. 

336.  (a)  Geirmoll,  R.C.  Mine  sampling.  Eng.  and-  Min.  Jour.,  vol.  76,  1903,  pp. 

497,  537,  768,  996.  Quartering  samples  underground.;  sample-bat s;  sample 
report  book. 

337.  George,  vY.H.  Moisture  in  blast-furnace  coke.,  Jour.  Soc,.Chem.  Ind.,  vol. 

38,  1919,  p.  394.  Describes  method  and  precautions  needed  in  obtaining 
a  representative  sample. 

333.  Glenn,  William.  Sampling  c-.rgoes  cf  ore.  Jour,  Soc.  Chem.  Ina.,  vol.  17, 
1893,  pp.  123-124.  Discusses  methods. 

33i?.  ,  Sampling  ores  without  use  of  ubachinery.  Trans.  Am.  Inst , 

Min.  Ent.,  vol.  20,  lci?2,  pp.  155-165;  En^.  and  Min.  Jour.,  vol.  52,  16»1, 
p.  195.  Description  and  discussion  of  hand  sampling. 

340.  Gocdale,  S.L.  Argo  cyanide  iiill,  Idaho  Springs,  Cclo.  Ent,.  ana  Min.  Jour., 
vol.  96,  1913,  pp.  3^5-339.  Describes  sampling  plant  and  methods  used, 
p.  3c6. 

Milling  practice  at  the  C*mp  Bird,  En^,  and  Min.  Jour.,  vol. 


79,  1905,  p.  651.  Describes  autcu^atic  saaplor  used  at  the  uiill  of  the 
Camp  Bird  .line,  Ouray,  Colorado. 

342.  Gould,  H.W.  Alnaden  quicksilver  nine  in  S#ain.  Min.  and  Sci .  Press,  vol. 
122,  1S21,  p.  566.   Saiuplinfc  methods  for  cinnabar. 

342.  (a)  Gouyard,  G.M,  Mine  sampling.  Eng.  and  Min.  Jour,,  vol.  76,  1903,  p. 

229.  Different  assay  from  samples  quartered  on  canvas. 

343.  Grabill,  C.A.  Ore  buyinL  in  Mexico,  5hg.  and  Min.  Jour.,  vol.  109,  1»20', 

p.  634.  On  the  cover  is  a  map  of  Mexico  showing  positions  of  the  princi 
pal  smelters,  at  which  ere  sampling  plants. 

344. __.  Ore  contracts,  Eng.  and  Min.  Jour.,  vol.  10«,  1919,  p.  ,-05. 


Discussion  cf  clause  regarding  sampling. 

345.  Graham,  Thomas.  Gaseous  mines  in  Crow's  Nest  .Pass  field,  B.C.  Proc.  Mine 
Inspect.  Inst.,  June,  1^16,  abstr.  in  Goal  Age,  vol.  10,  1916,  p.  »21. 
Illustration  of  vacuum  bottles  for  collecting  samples  of  mine  air, 

-28- 


346.  Gray,  Thomas.  Automatic  gas-sar.pling  apparatus,  with  some  observations  on 

sampling  gas.   Jour.  Soc.  Cheu.  Ind.,  vol.  32,  1?13,  pp.  109J-  *4;  av-sh, 
in^Gas^Wcrld,  vol.  5S,  1913,  p,  363;  ana.  in  Jour,  of  Gas  Li^inu,  vol. 
1S4,  1913,  pp.  £49-i?oO,  Describes  apparatus  and  method  for  sa^p^in^ 
industrial  gases  ^nd  gives  experiments  to  test  the  accuracy  of  the  method, 

347.  Grease  s-V.'alker,  A.F.   Testing  clay  properties.  Brick  and  Clay  Record,  vol. 

49,  IS  16,  pp.  10:3-1035;  vol.  50,  1917,  p;  .  35-36, 

34^.  Green,  R.I.  Constant  errors  in  sampling.  Min.  and  Sci.  Press,  vol.  »7, 
1308,  pp.  524-525.  Discusses  advantages  of  grading  ore  for  shipment, 

|349.  Greene,  F,T.   Mine  sables  as  baggage.   NSLn.  and  Sci.  Press,  vol.  114,  1917, 
p.  722.  Cites  case  cf  railroad  accepting  s-unples  as  baggage. 

J50.  Gregory,  T.V..D.  Notes  on  s:nplinL.  Colliery  Guard,  vol.  109,  1915,  pp. 

1168-1169.  Discusses  uethcis  of  sailing  coal  seans,  mine  air,  and  water. 

351.  Griffin,  M.L.  A  mathematical  view  of  sampling  with  reference  to  the  decree 
of  accuracy  at  tainea.  Jour.  Soc.  Cham.  Ina.,  vol.  28,  1909,  pp.  192-194. 
Discusses  number  of  samples  necessary  tc  obtain  accurate  inf  eruption. 


,  .     _  .  Standard  methods  of  sampling:  a  review  with  some  suggestions. 
Jour.  Soc.  Chem.  Ind.,  vol.  24,  pt.  1,  1905,  pp.  183-155.  Reviews  ad 
vance  of  sampling  during  the  previous  25  years. 

53.  Grout,  F.F.,  and  Soper,  E.K.  Clays  and  shales  of  Minnesota.  U.S.  Geol. 

Survey  Bull.  673,  1919,  p.  45.  S^plinte  clay  by  cutting  groove  ana  by 
2-in.  auger  holes. 

54.  Grunow,  W,R.  Churn-drill  prospecting  at  Mcrenci,  Ariz.  Eng.  and  Min.  Jour., 

vcl.  101,  1916,  pp.  969-974.  Describes  methods  of  sampling  ana  illus 
trates  an  automatic  sample  splitter  and  a  stove  for  drying,  samples. 

55.  Guess,  G.A.  Notes  on  pyritic  smelting.  En£.  and  Min.  Jour.,  vol.  ^3,  191^, 

pp.  113-117.  Discusses  samplinb  blast-furnace  gases. 

56.  Gunther,  C.G.  A  device  used  in  sampling  untimbered  shafts.  Eng,  and  Min. 

Jour.,  vol.  82,  1906,  p.  247.  .  Describes  a  sampler's  seat  in  which  he  can 
be  raised  or  lowered  while  working, 

57.  _  .   Examination  of  prospects;  minin&  geology.  1912,  222  pp. 

Discusses  sampling,  pp.  12-19. 

58.  Hahn,  O.K.  Development  of  silver  smelting  in  Mexico.  Trans,  Inst.  iViin,  and 

Met.,  vcl.  8,  1099-1900,  pp.  231-299;  discussion,  pp.  299-303.  Describes 
sampling  department  at  a  custom  shelter,  pp.  2<±l-247. 

59.  Ealdane,  J.S,  Methods  of  air  analysis.  3rd,  ed.  1920,  pp,  137.  Collection 

cf  samples  pp.  1-8;  keeping  samples,  p.  75. 


-29- 


360.  Haloy,  C.S.  Relative  error  in  alluvial  sai^plin^   Min.  and  Sci.  Press,  ,vol. 

Ill,  1915,  pp.  73-80,   Criticizes  a^thods  sampling  i,olo..  gravel. 

361.  Haley,  D.J?  .  Sa^plin^  by  machine.  Eng.  and  Min  *  Jour.,  vol.  87,  1909, 

p.  362.  Discusses  article  by  J.A.  Church,  En6.  suu.  Min,  Jour,,  vol.  37, 
1908,  p.  113. 

362.  Kaley,   J.F.     Churn-drill  prospecting  in  the  Joplin  district.     Enb,   ana  Min. 

Jcur.,  vol.  £9,  1910,  p.  1150-1151.  Describes  Bethel  of  drilling  ana. 
.device  for  sampling  cuttings. 

363.  Hallett,  S.I.  Autocue  sampler  at  the  Smuggler  Mills,  Aspen,  Colorado. 

Min.  and  Soi.  Press,  vol.  83,  1901,  p.  55,  Describes  teeter-box  sampler 
with  pneumatic  check, 

364.  ____  ..  Method  of  cine  sai^plinr.  Min.  and  Sci.  Press,  vol.  86,  1903, 

pp.  21-22.  Gives  advice  and  suggestions  for  sataplin^  and  valuin^  ore  in 
mines. 

365.  Hammond,  H,0.  Snelter  lab.  of  United  Verde  Extension.  Eng.  and  Min.  Jour., 

vol.  110,  1920,  pt  991,  Brief  descriptio  n  and  plans  showing  how  samples 
are  handled, 

366.  Hance,  J.H.  Segregation  in  gold  bullion.  Min.  and  EnL.  .  World,  vol.  44, 

1915,  p.  601;  Bull.  Am.  Inst.  Min.  Eng.,  vol.  54,  1916,  pp.  506-540.  De 
scribes  sampling  by  chippint  drilling  and  dipping,,  p.  507, 

367.  Hancchett,  F.3.   Daily  sampling  in  square-set  mining  Arizona.  Min*  and  En6- 

World,  vol.  45,  1916,  pp.  ^49-950.  Describes  methods. 

36o.  Handy,  J.O.  Sampling  and  assaying  of  silver  ores,  containing  cobalt  , 

nickel  arid  arsenic.  Original  coi^mni  cat  ions,  6th,  Int.  Cong,,  Applied 
Chem.  ,  vol.  3,  1912,  pp.  69-95;  abstr,  in  Jour.  Soc.  Chen,  IncL.,  vol.  31, 
1912,  p,  tSO.  Discusses  uoisture  sample,  sampling  low-^rade  and  high- 
grade  ores,  and  methods  of  assaying. 

369.  Handy,  R.S.  Calculation  of  recovery  in  concentration,  Ene.  Min.  Jour., 
vcl.  90,  1910,  pp.  301-302.  Coapares  tirue  sampling  favorably  with 
Hoover's  fornula  for  percentage  recovery. 

3?0  .  _  _.  Treatment  of  tailin^  and  ore  in  Sweeny  cill,  Idaho.  Min.  and 
Sci.  Press,  vol.  119,  1919,  p,  239.  Sailing  a  duqi  of  1^200^)00  tons  of 
lead-silver  tailing. 

V 

371.  Hanks,  Abbot  A.  Improvements  inassrying.  Min,  and  Sci.  Press,  vol.  102, 
1911,  pp.  662-664.  Describes  preparation  of  ore  samples  fcr  fire  assay. 

.  Sampling  and  analysis  of  chrcmte.  Min,  ana  Sci.  Press, 


vol.  117,  1915,  p.  654.  Preparation  of  sables  for  analysis. 

373.  Harbord,  F.W.  and  Hall,  JJ/.  The  metallurgy  of  steel.  5th.  ed.  1*16,  2 
vols.  522  pp.  Describes  sanplim  basic  process  c.etal,  p:;  66;  sampling 
steel  for  cicroscrpic  exaclnaticn  466-469. 


-30- 


374.     Harding,   J.E.     Calculation  t^  an*ge  and  grade  froui  ^nil-hold  samples  .     Mm. 
and  Met.  No.    16o,   Dec.    1:>20,   t;«  3s»»     Me  the  a,  of  es'it 


375.     Harp,    C.C.     Sa^plim    coal  deliveries.'    Ration*.!  En:..,   vol.   20,    1*15,   pp. 
421-423.     Discusses  factors  in  aete  raining  value  of   coal,    import  -nca  of 
representative   sai-ples,    collecting  ana  .preparint  samples  and  nanal  in-£   of 
final   saqplas. 

37b.     Harrington,  Daniel.      Dust   control  ana  ventilation  in  iaetal   imnes,     En^.    aijci 
Min.   Jour.,    vol.    Ill,    1921,   p.   73s.     Kow  air   samples  ara  obtained. 

37.7.  _.     Ventilation  in  a.etal  nines;   a  preliminary  report. 

Bureau  of  Mines  Tech,   Paper  ^51,    1921,     How  samples  of  taine  air  are  taken, 

376^     Karris,    C.M.     Pr  -spectin^  in  Western  Austr-.li~.     Bull.   Inst.  Min.   ana  Ifet  . 
Abstr.    in  Min.  Mic,,,   vol.   21,    lUb,   p.   30*.     Discusses   sa^plin^  metiiovis 
fcr  placer  ores, 

379.     Harris,   F.S.     How  ^ines  should  be  examined..    En6.   and  Min.   Jour.,   vol.   70, 
1*00,   p.   603.      Cogent  s  on  article  by  O.K.  Packer. 

3oO.     Hartley,    Carney.      Churn-drill  saniplinb.      Min.   and  Sci  ,   Press,   vol.    9o, 
p.   54».     Cotonents  on  article   by  W.E.   Thome. 


Karvey,   Alfred.     Automatic  ore   saaplint  .     Min.  'and  Sci.  Press,   vol.    36, 
pp,   7o-7b-,     Describes  and  ^ives  plans  of  an  autv^matic  ore   sampling  plant  . 

Autonatic  ore    sajapling,     Min.    and  Sci,   Press,   vol.    36,    Ii03, 


Pp.   367-36'^.     Describes  the  Vegin  and  th<j  New  Brunton  saEplin^  machines. 


3S3.     Hastings,  J.H.      Sampling  and  analyzing  zinc  ores  and  products.     En£,   and 
Min.   Journal,   vol.    104,    1&17,   pp.    163-165.     Gives   suggestions  for  s^p 
ore   in  place,    old  duups,    i^ill  and  shelter  feed,    concentrates  ana   spelter. 
Gives  methods  in  vc^ue. 

304.  Hastinfcs,   J.xi.     Saiiipling   of  lar^e  low-grade   ore-bodies.     Min.   and  Sci. 

Press,    vol.    114,   1917,   pp.   379-360.      Suggests  a*  t  hods  for  dine   sapling 
and  uiill  tests'  on  uiine   samjles. 

305.  Haul  tain  ,  H.E.T.     Notes   on   sau,plinfe.      Can.  Min.   Jour.,   vol.   31,    1*10,   pp  , 

356-360.     Discusses   quartering  down,    sp.npling  porcupine  ore  boaics,    ana 
principles  of   sampling. 

386.  Hazard,   F.H.     Device  for  splitting  pulp   samples.     En^.   and  Min.   Jcur,,   vol. 

b3,    li>12,  pp,    10C;-110.     Describes  trou^ns  for  splitting  net   sa^plas. 

387.  Heath,    G,L.     The  analysis  of   copper   and  its  ores  and  alloys.      1916,    252  pp. 

Discusses   saaplifig  and  crushing,   pp.    l-i-36. 

;S,     Heathccte,   C.S.     Automatic  ere   sfittpljr.     Jour.   Chamber  of  Mines,   Western 
Australia,   Mar.   31,    1906;      abstr.  Eng.    ana  Min.   Jour.,   vol.   66,    1906,   p. 
1^1.      Describes  a  sampler  with  a  revolving,  ar-  carrying   a  tri^pinfe  bucket, 
ReserLbles  Bretherton's  patent, 

-31- 


389.     Heiielbeiv,   F.rv..      A  portable  w?_ter  sailer.      Enu.    snu  Min.   Jour.,   vcl,    10,3, 
,    pp.   3-*.3-5<*i.      Describes  portable  u.ine-ditcn  sanpl^r. 


3»0.     Bailor,   A,H.     Flotation  at  the  Afterthought  /line,    Calif.     Min,   and  Sci, 
Press,    vol.    119,    !&!'»,   p.    lol.     Flow-  shoe  t   shows  position   of  automatic 
sandier. 

3r,l.     Heriy,   J,A.      Sac-.-lia-,   ore  in  tunnels,     En<^.   ana  Min.   Jour  .,   vol.    »•!,    1^11, 

p.    79c  . 

3iz2.     Herict,   E.iVI*      Ore  dressint,  at  Glaus  thai,   Geriuany.     JEn&«   and  Min.   Jour,,   vol. 
100,    ls>15,   pp.   42o-<±2;7.     Gives   sketch  of   sailing  plant. 

.     Herein.  H.     Intensive  boring-    on  the  V»onthaL^i  coal  field,    Victoria.     Proc. 
Aust.I.'.  M.  E.  ,  No.  32,    191s,   p.   145,     Over  300,000  ft.   of  boreholes  vrere 
put  down  to   test   the  ccal  in  11  years. 

.  Heron,  C.M.  Mine  s  -splint  at  El  Tifore;  Mexico.  En...  ana  Min.  Jcur4,  vol. 
^o,  Ibl*,  PJ_.-.  155-153.  Describes  develop^snt  and  stops  ScU'-plint  ana  the 
keepinc  of  records, 


3c;5.     Herr,    Irving,      Sa.vlint;.  placer-gravel  deposits.     En^  .    and  Min,   Jour<}   vol. 
103,    li>16,   pp.   261-262,     Describes  a  t_ethoa   ?.nd  &i\r<3s  sketch  of  gravel 
field  and  drilling  plans. 

.      Souie  observations  en  sailing,     En^.    ana  Min.   Jour.,   vol.    102 


li?16,   pp.    1015-1017.      Discusses  errors  in 

3i>7.     Herrick,  H.N,     Valuation  cf  dred:0inc.  trcuna.     Min.   anu.  Sci  .   Press,   vcl, 
1^14,   p\    6c/2.      Drill-hole   samples  calculations. 

3i-j.     Hersa^.   E.A.     Principles  in  the  practice  of   sau^lint.     Min.   and  Enfc  .   V.crld, 
vol.   35,    1^11,    pp.    1054:-"105c5  .      Discusses   ,.;rinciples   of   s  a  splint,  especially 
the  element   cf   chance. 

3SS,     Herzig,    C.S.     Mine   sampling.     En&.   and  Min.   Jour.,  vol.   7    ,    1934,   p.    '561, 

vol.   7'^,    1905,   p.    S3.      Describes  the  use  cf  a  canvas   cucket  in  place  of  a 
sampling  box. 


•       Mine   sampling  ana  valuin^.     A  aiscussion  of   tne  ^eth-as  usea 
in  san-.pling  ana  valuing  ore  aepcsits,  with  especial  reference  to   the  work 
of  valuation  by  the   independent  engineer.     Ea.   cf   Iblft,    163  pp. 


401-     __  •       Ore  in   sifcht.     Min,    ana  Sci.    Press,   vol.   102,    1911,   pp.   265- 
267.      Discusses  ^ine  valuation  ana.  tne  p  -.rt  played  in  it   by  the  hu^ian 
factor. 

402  •     ___  •        Results  fron.sau.pl  int..     Min.  toab  .  ,    vol.    3,    1»13,   pp 

Discusses  errors  .^aae   by  four  en^inosrs  in  v^luint  tne   sa,..e  uiine. 


4°3-     --  -       Valuation  cf  dred^ir,^  ground.     Min.   ana  Sci.   Press,   vol.   10», 
,   p.   563.     Placing  drill-holes   ?.rid  calculating  results   of    s 


-32- 


104.      Hess,   P.L.      Tungsten  amoral  6   and  deposits,     .oull.    ^2,  U.S.    Geol.   Survey, 
1917.      Sampling  and   testing  of  t,i 


405.  Eig^.ins,   Edwin.     How  snail  we  ^et  tanin^  efficiency?     3JnL.   ana  Min.   .To'ur., 

vcl,    lOb,    1^20,   p.    13sc.      Query  13::    ?.sks ,    "Are   s^plin^,  and  e.3-s<,-y-'-rfe 
properly  correlated,    sc   that   resulos  are  obtained  with  a  udni._ui_  of 
delay? " 

406.  Highar.,   James.      An  automatic  pulp   sampler.      Proc.    Cheui.    and  Mot.   Sec.    of   3. 

Africa,   vol.   4,   1903-Qi,   pp.   232-235;     Min.   and  Sci.  Press,   vol.    o7,    1903, 
p.   222.     Describes  a  machine  for   sampling  mill  pulp   and   tailings. 

407.  Hill,   H.H.      and  Dean,   E.V, .     Quality  of  Baseline  ^.arketel  in  the  United 

States..    Bureau  of  Mines  Bull,    ltd,    li?20.     Met nod  of   collectin^   samples. 

B;     Hillebrand,   V,  .P.      Standard  methods  of   saivlin_-  ?-'&->•  analysis   and  standard 
sample's.     Jour.   Ind,   and  En«i.   Ci:em.,   vol.   6,    1^16,   pp.   4*b?— *c»..     Gives 
principles  and  criteria  for  3c'.:;.plint.,,      Gives   oiblio^raphy  of  raethods  for 
sar.plina  a  variety  of  articles  approved  by  the  U.S.   Government  and 
scientific  and  technical  organizations. 

-J.     Hills,    V.G.     Mine   sailing.     Trans.   Can.  Min.    Inst.,   vol.    17,    1*14,   pp. 

262-274.     Discusses   size  and  reduction  of   sables,   keepin^  of  notes  and 
recvrda,    inch  r^3asureDents,   bunched  samples,    -^nd.  selective 


^' .     Tailing  samples.     En^.   ana  Min.   Jcur.,   vol.    »o ,   lt/l*±,   p.   31o. 

Discusses  advantages  of   the  water-cox  saopler.      Co^.ents  on   article  by 
L.U.N.  Judell. 

411.     Hintz,   E.     Bericht  aer  Unterkoiai'dssion  fur  die  Bearoeitun^  der  Eisenerzan- 
alyse.      Zeit,   fur  An$r.we.    c^e^-ie,   Jahr.   27,    1,    li?l^,   pp.    j»-ll;    Iron  ores: 
Heport   of  the  CouLiittee  on  ii^thods  of  analysis,   Vermin  Deutscher  Cheu^ker. 
Abstr.,   Jour,   Soc.   Checi.   Ind.,    vcl.   33,    l»lft,   p.    13o«     Discusses  prepara 
tion  of   saraples  and  ^ives  directions  for 


412.  HodL,e,   W,E4     Test-pit  for  duu-p   sa^lin^,.     En^.   ana  Min.   Jour.,    vol.    »2, 

1S11,   p.   1028.     Describes  method  of  driving  pit   into  large  au^ips. 

413.  Hoages,   A.D.  ,jr.     Sampling  and  its  importance;   also   on  sampling  placer  nines 

Eng.   and  Min,   Jour.,  vol.   52,    lri/1,  p.   264.     Discusses  principles  and 
sainplint:  fro^n  wet  batteries  and  descrioes  placer 


414.  Hof  man  ,  H.O.     laproveiLents  in  sairplin^,  and  assaying.     Min.   Ina.,    vol. 

I'^OS,   pp.   646-648.     Reviews  progress  in  sa^plin,   ana  assayin^  for 
and  references  to  periodicals. 

415.  Hofnann,    Ottckar.     Treatment  at  the  Auburn  mill,  Wev.     Min.   and  Sci.   Press, 

vol.   22,    11:71,   p.    24-.     Ssu^plint  uiethods  are  covered. 


416.     Hciil,    L.J.     Valuation  of   dredginb  ground,     Min.   and  Sci.    Press,    vol.    10», 
,  p.   4b3.      Placing  of  drill-holes  and   calculations. 


417.     Holloway,  G.T.     Min.   Jour.,   vol.   7i>,   pp.   44-45.      Gives  tables  for   convert 
ing  percentages  into   ounces,    or  pennyweights,    or  grains  ...er  ton  of  2240 
Ib,    and  also  per  ten  of  2000  ID. 


-33- 


418.  Holies,  J.  A.   Sampling  of  coal  in  **  mine.  Technical  paper  1,  U.  S. 

Bureau  of  Mines,  1911,  18  pp.  Describes  the  sampling  methods  and.  sampl 
outfit  devised  by  the  U.  S.  Geological  Survey  and  the  Bureau  of  Mines. 

419.  Holmes,  J.  A.,  Franklin,  E.  C.,  and  Gould,  R.  A.   Report  of  Selby  Smelter 

Coii^-ission  ,  Bureau  of  Mines  Bull.  98,  1915,  pp.  528.  Numerous  references 
to  sampling  the  atmosphere  in  the  suiter  zone. 

420.  Holt,  Theo,  P.  Plant  of  the  Tintic  Milling  Co.,  Utah.  Min.  ana  Sci  . 

Press,  vol,  120,  1920,  p.  603.  Sampling  silver-lead  ore. 

421.  Hood,  K.  K.   curves  for  ore-valuation.  Min.  and  Sci.  Press,  vol.  121,  1920, 

p.  270.  Graphs  plotted  from  drill  samples  and  assay  multiplied  by  cer 
tain  factors. 

422.  Hooper,  H.  E.  Mine  sailing  devices.  Trans.  Inst.  Min.  &  Met.,  vol.  18, 

1908-09,  pp.  66-67;  Min.  &  Sci.  Press,  vol,  97,  1908,  p.  704.  Describes 
a  sampling  chair  and  a  catching  bag. 


423 


Test-pit  sampling  of  placers,  Eng.  and  Min.  Jour.,  vol.  102, 


1916,  p.  222,  Describes  sampling  alluviam  worked  for  wolfram. 


424.  Hoover,  Herbert  C,   Principles  of  Mining,  1st,  ed.  1909,  pp.  199.  Sampling 

includes  ore  in  a  mine  and  mill  products.  Chapter  1,  on  mine  valuation, 
discusses  all  phases  of  sampling,  and  calculations  arising  therefore. 
Precautions  against  natural  salting  and  intentional  salting  are  given. 

425.  Hopkins,  G.  V,  Buying  and  sampling  ores  and  working  mines  on  the  tribute 

system  in  Chili.   Trans.  Inst,  Min.  and  Met.  vol.  6,  1897-98,  pp.  108-112, 
Describes  mechanical  sampling  as  found  in  Chile. 

426.  Horner,  R,  R.  Black  sand  deposits  of  Southern  Oregon  and  Northern  California 

Technical  Paper  196  U.  S,  Bureau  of  Mines,  1918.  Methods  of  sampling 
beach  sands  containing  platinum. 

427.  Horwcod  ,  c.  B,,  and  Park.Mungo.  Development  -samp  ling  ando  re-  valuation  of 

gola  mines.   Trans.  Am.  Inst.  Min.  Eng,,  vol.  39,  1908,  pp.  685-6^4. 
Discusses  principles  and  methods. 

428.  Hotchkiss,  W,  0.  Exploration  methods  on  Gcgebic  range.  Min.  and  Met.  No, 

163,  1920,  p.  29.   Difficulty  in  sampling  iron  ores. 

428.  (a)  Hcwe,  A.  S.  Mine  sampling.  Eng.  and  Min.  Jour.,  vol.  75,  1903,  p.  588. 

Grab  s.opling;  rich  streaks;  and  use  of  slide-rule. 

429.  Hughes,  F,  C.  Sampling  of  ores  and  bullion,  especially  silver  bullion  for 

Mint  purposes.   Trans.  Min.  and  Geol.  Inst.  of  India,  vol.  2,  part  1, 
1907,  pp.  57-70.   Discusses  methods  ana  devices. 

430.  Hulst,  G,  P.  International  Lead  refining  plant  ,   Trans.  Am.  Inst.  Min.  Eng., 

vol.  49,  1914,  pp.  532-538;  discussion  538.   Describes  sampling  kettles 
and  method  of  sampling 


41.     Hunt,   <<.'/,.     M«tnuf*ctur«  of   st«*l  r*ii«.     Bull.   153,   Sex,t  .    l^lb,   of  A. 
M.  &.  M.  1.,   ,>,   £33*.     ',  -.is  by  d 


42.     Buntoon,  L.L.     Accuracy  of  L*C.  -  -    -if  fie  ore  samplers. 

Win.  Jour.,   vol.   00,    U10,  .Ascusses  requir 

cal  ore  samplers  and  the  cauao  ~f  *n  accurate  results  wit  it,  riff 
.,  -ros  wet  and  dry  screen  tests. 


.     Faulty  si^lin^  devices.     i.n:  .    ar.  .      L.  .   J'-ur.,   vcl. 
p.    159.     V/arns  against   simple  lo-kin__  oevice  thit  fails  to   t-Jcs  a  fair 
sample  cf 


__  .     Pre^arati  on  cf  &ssay  s  ?-!,..  lo  a.     In-  .  -•-'--   -'    ?•,    7'  -  -    -- 

1'Jll,   p.   12*».     Gives  .-etnods  of  reiucinj,  l^.r^e  mechanical 
assay  i-ul^s  so  as  t     avci^  inaccuracies. 


35.     ________  .     Pre^annc,  ana  roccrdin^  s^vl'-irs  for  use  In  teen/. 

laboratories.     Trans.  ,   As-   Inst.   :::.'..    Z.'.    .  ,  vl.  40,    19C-, 

Liscussos  7/ewey  iecical  system  of  recrrds  ana  the  use  ?f  index  ar.-  assay 

cards. 


36.     ____  .      St?.  _r--alls,in  1^10.     2ne.   ana.  Min.   Jour.  ,  v  •  1.    »1,    li»llf 
p.   45.      Cost  of   sii^plinb  was   1/4  cent  ^er  ton  when  treat  in&  SCO:     '-:..- 
daily.      Charge  f.r  custc  iin^  was  80  tc  22  cents  _.er  100  tens  cf  ~ 

t37.     Eut  chins,   J.P.   ana  Stines,   N.C.      S  =  _;/-i.'.i  placer  grjurxi..     14in.   anc.  5ci. 
Press,   vcl.   102,    1*11,   pp.   2^2-294.     Describes  haniline,    -; 

it   is  pu^  e  ^  vip  . 


37.      (a)     Button,   G.H.     Placer  jrcspectir.^  .  ractice.     atin.   ana  Met.,  So.   1" 

1921,   p.   15.     Sasplin^  ^etr.c.z     :    today  are  little  changed  froi.  10  years 
a£o;    sailing  and  actual  recoveries   often  vary  widely;   sugtestiLns  saoe 
for  different  ^ethci  cf  calculaticn  cf  estimates. 

57.      (b)     _  .     Valuation  rf   ^lacer   deposits.     24in.   and  Sci  .  Press,   1r6l. 

123,    Ib21,   p.   365.     Methods  of  sai..  li  .-.._  ,    calcriiaticns  and  discrepancies 
betveen  sailing  and  actrtial 


Ingalls,  V7.R.     Methods  cf  nine  ex^-i.    :i   n.     Eng.  and  Ifin.  Jcur.,  vcl.  70, 
1SOC,   pp.  753-754.     Coc^ants  on  article  fcy  O.H.    ??.c--ier. 

53.     Icnides,    S.a,     Continuous  sulphuric  aci-   Si_;l5r.     Chen,  and  Met.  Sng., 
vcl.   2C,    lili-,   £..  38. 

Iron  an-  Cral  Trade  Review.     Staz.r-.-.riization  cf  coal  sampliog.     Vol.    j 
1913,   pp.  574-575.     discusses  colliery,    eaxi.b,   bnoker,   truck,  and  C=L_ 
.,    also  labcrat   ry  treatment   of    sas-cls. 


Irvin,    I.F.      Adequate   s^Arllr.^    i.:  _r-ern     -11  practice.     ia.n  .    ma   3::.    Press, 
vol.    1C6,    1^13,   po.   514.      lifjMs;,?    '.r.~    =ir^lin£  of   san-  ,    ::     -    -1-        i^ 
cf  t^ilir^s  with   i...   rat. 

Cyanide  plant  acccuntin£.     Kng.  and  fin.    *     r.     vcl.  &7, 


pp.    ^7-8*9.  Describes  saaplin^  methods  used  at  a  cyuii  :.=   ;1 


443.  Jacklinb,  L.  The  Republic  sampling  and  reduction  works.  Min.  and  Sci. 

Press,  vol.  ol,  1^00,  ^  372.  Describes  plant  at  Republic,  Washington. 

444.  James,  G.A.   Contamination  of  laboratory  samples  by  iron  derived  from 

crushing  nachinery.   Chern.  Engineer,  vol.  14,  1911,  pp.  3oO-3d. 

<t45,  .  Moisture  as  a  source  of  error  in  «a.ssay  reports.  Eng.  and  Min, 

Jour.,  vol.  90,  1913,  pp.  1047.  Discusses  importance  of  keepin^  samples 
dry. 

4<*6.  _  .  Salting  of  sarnies  and  means  of  detection.  Min.  and  Ent-. 

7?orld,  vol.  36,  1912,  pp.  1099-1100.  Gives  causes  of  innocent  salting. 

447.  Jania,  F«  lie  Erzprobenahme  uni  die  Zurichtun^  ctes  rurchschnit'csr-usters 

fur  die  che.rdsche  Analyse.  (Sampling,  and  the  preparation  of  samples  for 
chemical  analysis).   Oestsrreichische  Zeit*  fur  iierr.-und  Hutteriweoen, 
Jahr.  52,  1904,  pp  *  547-549,  561-564,  577-580* 

445.  Janin,  Charles.  Gold  dredging  in  the  United  States.  U.S.  Bureau  of  Mines 

Bull.  129,  l^lc,  p.  160  to  192,  Sampling  and  calculating  value  of  places 
ground;  theoretical  value  and  actual  yields.  \ 

448.  (a)  _  _    .  Mining  Engineers'  Examination  and  Report  Book*   1st.  ed. 

1»13.  Instructions  for  sampling  fully  covered. 

Sampling  placer  ground.  Eng.  and  Min.  Jour.,  vol.  91, 


1911,  p.  754.   Criticizes  caethod  described  by  T.L.  Carter. 

-±50.  Janin,  Charles,  and  Winston,  W.B.  Gold  dredging  in  California.  State 

Mining  Bureau  Jull.  57,  1910,  pp.  312.  Sampling  placer  ground  by  drill 
ing  discussed  en  17  pa&es. 

451.  Jar^an,  Arthur.  Mining  and  treatment  at  the  Talisuan  uine,  New  Zealand. 

Trans.  Aust.  I  .  M.E.  ,  vol.  16,  1912,  p.  359.   Sauiplinfe  in  tne  uine. 

452.  Jene,  H.L.  Mortar  for  laboratory  crushint.  2n&«  and  Min,  Jour.,  vol.  37,1s 

pp.  7c8.  Describes  device  for  coarse  ore  especially  ore  which  is  in 
clined  to  fly  durin^  crushing. 

453.  Jennings,  R.C.  Valuin^  placer  ground.  Min.  and  Sci.  Press,  vol.  10y,  1^1^ 

p.  527.  Lr  ill  -hole  sample  cp.lculations. 

454.  Jennies,  S.J.  Lar^e-scale  sampling.  Enp  .  and  Min,  Jour.,  vol.  ?ct  It>l4, 

^.  1138.  Describes  the  taking  of  30-ton  samples  at  Juneau,  Alaska. 

455  •  _  ___  __  ,•   Sauiplinb  of  low-ferade  ore  deposits.  Min,  an.l  En^.  V/orld, 

vol.  41,  1914,  p,  10^6.  Describes  a  method  of  sampling  gola  ore  in  Alasi 

455.  (a)  Jenson,  J.B,  Petro-shales  of  the  Western  Slope.  Proc.  Am.  Min.  Con 

gress,  vol.  24,  1^21,  p.  532.  Prospecting  and  sampling  should  be  aone  oy 
diamond-drills  and  tunnels. 


-36- 


455.     Johnson,   P^ul.      An  automatic  jystou*  of   s.^plin^.     En^.   ana  Min.  Jour,,   vol. 
73,    li>02,   pp.    51-i-olcj    Abst.   Je<;r«    Soc.    Chem.   Ind,  ,   vol.21,    !»('£,  'p.   7.;,    , 
Min,   Ind.   Vol.  ..11,    1»02;   pp.   -i^-430.     .Lescrioes.  2.  sampling  mill  and  ap 
paratus  at  Greenwood,   .b 


457,     _  t  __  .      Ore   sa^lin;,  at  21  Paso,   Texas.     En^.    tJid  Mm.   Jour.,   vol. 
53,    1:S2,   pp.   Ill,  132.     Liscusses  methods  of    8i'.L.rlin£  ,in  United  States 
and  in  Europe, 

455.     Journal  of  Canadian  Minin^  Institute.     Hecent  developments  at  the  Granby 
shelter.     Vol.    13,    1^16,   ^  .   273-2i;7.     Inscribes  sampling  methoas   at  vhe 
works  in  British  Columbia. 

459.     Journal  of  Industrial  and  En^ineerin  .  Chemistry.      Tentative  methoas  for 
sampling  and  an^lyzin^  coal.     Vol.  5,    1^13,   pp.  517-526.     First  report 
of  the  cou^ittee   cf  the  A^eric^i  Society  for  Testing  Materials. 

_  ____  ;  ____  ^  ____  _  •       Preparation  of   laboratory 


__ 

sarnples;   cc^-uttee  report.     Vtl.   s/  ,    1&17,   pp.    100-101.     Jrom  report  of 
the  Joint   CoLzz.it  toe  on  coal  analysis  of  the  Anerican  Society  for 

materials, 

' 


451.     Judell,(  L.U.W.      Simple,  sampline  device  ,     En^,   .anl  Min.   Jour.,    vol.    *Q  , 

p.    1146.     Describes  a  simple  device  for  sauiplinr.  jig-  tailings. 

p 

462.  ____  .   Simple  sampling  device,  Eng,  and  Min.  Jcur  ,  ,  vol.  a7,  1»14,  / 
'cccrnent,  vol.  ^v,  1914,  p,  2i.   Describes  an  automatic  pulp  sampler. 

462.  (a)  Julian,  H.F.  and  Smart,  Edgar.   Cyanictin^,.  ^old  ana.  silver  ores,  1st.  ea. 

1S04,  pp.  405,   Where  samples  may  oe  taken,  sam^lin^  aumps,  and  lao, 
methods,  pp.  b-17. 

463.  Jucn,  E.  Probenehnen  in  L'etallur^ischen  Betrieoen.  (Sampling  in  metalluri- 

cal  works).  Zeit.  angew.  Chemie,  Jahr.  17,  ly04,  p.  1544.  Discusses 
ana  methods  . 


464.     Kahan,   Ii.H»      Saaplin^,   oullion.     Jour.    Chem,   Met,    ana  Min,.  Sec,    S.   Africa. 
Abstr.    in  Min..  and  Sci  .   Press,   vol.    123,    1^21,   p,   30,    Discusses  -dip 
samples,    end  drilling  of  gold  bullion, 


465.     Keene,   J,P.     Churn-drill   gravel-  sai^lin^.     Min.   ana  Sci.  Press,   vol.. 
1909,   pp,   238-  2d9.      Describes  method  of   sinking  the  pipe   to   the  bea 
with  little  or  no 


465.  Keety,  T.F.  Errors  in  mine  sampling.  EnL.  and  Min.  Jour,,  vol.  ^1, 
p.  79b.  Describes  errors  liaole  in  srimplinL  erratic  gold.  veins, 

467.  Keighley,  F»C.  Selection  of  coke  samples  for  analysis.  Proceea,  Coal  Min. 
Inst.  Am.  1^13,  pp.  167-172,   Su^c-ests  methods  for  sampling  c.';ke  for 
deten:-inin£  the  phosphorous  present. 

Keller,  Edward,  Distribution  of  the  precious  metals  anu  impurities  in 
copper  and  suggestions  for  a  rational  mode  of  sampling.  Trans.  AJI,  Inst. 
Min.  Enc.,  vol.  27,  Ic98,  pp.  106-123. 

-37- 


.     Mathematics  of   copper  sa^plin&,     Ene,  and  Min.   Jour.,   vol 
y3      1*12,    op.   703-700,   discussion,   ^  .   729,    1213.      Discusses   interior 
structure  of   cc^er   OD.rs  and  aei-:onst  rates  how  each  separate  hole  can  be 
uiade  to  represent  the  average  cf   the   oar  in  which  it  is  placsa. 

470,        ____  .       Mooility  of   gold  in  solid  state.     Enb.   and  Min.   Jour.,   vol. 
107,    191b,   £.   35-,      Ssuaplinfe   copper  plates  containing  gold, 


471. .   Principles  and  practice  of  sailing..  metallurgical 

"with  special  reference  to  the  sailing  of  copper  bullion.  U.S.  Bureau 
Mines  Bull.  122,  1916,  102  pp.  Discusses  theory  of  sampling  ana  its  ap 
plication;  describes  procedure  and  equipment  in  detail. 

472.       5   Sampling  anode  copper  with  special  reference  to  mineral 

content.  Bull.  AM.  Inst.  Min.  EL£.,  vol.  42,  1^11,  pp.  i?05-»0o;  Min. 
Ind.,  vol.  19,  1910,  ^.  797.  Discusses  William  Wraith1 s  paper. 

473.  .   Sampling  metallic  r.etallurgical  materials  (copper).  U.  S, 

Bureau  of  Mines  Bull.  122,  1916. 

474.  Kerns,  R.W.  International  smelter  at  Mi  aid. ,  Ariz.  En,,,  and  Min.  Jour., 

vol.  101,  1^16,  pp.  420-424,  Describes  sampler  copper  concentrates. 

475.  Kershaw,  J.3.C.  Fuel  economy  in  the  boiler-house.   One-.,  and  Met.  En^., 

vol.  20,  1919,  p.  294.  Sampling  flue  gases. 


476.  _  ,      Sampling,  v.    correct  analytical  results.     Met,   and  Chea. 

Enfe.,    vol,    17,    1917,   p.    105.     Gives  principles  of   sampling. 

477.  _  fc.      Scientific  ruethcds  of   coal  buying.     Coal  A^e,   vol.    11, 

1*17  ,   p.  3^7.     An  intelligent   and  reliable  sampler  is  necessary,    and  with 
two  or  three  helpers  csjn  sample  1000  tons  daily.     Face  and  cargo 
discusse'd, 


47c  .     Kiadie,   Thoi^as.      Causes  of  variations  in  ore   sauiplint  .     Jour.   Can.   Mm, 

Inst.,    vol.    13,    1^10,   pp.   556-560;   discussion,   pp.   560-576;     En£-.   and  Min. 
Jour.,  vol.   60,    l»0y,   pp.   625-626.     Discusses  effect   of   size  of  ore  on 
results  of   saaiplin^  and  analysis. 


Screen  analysis  in  sampling.     £nb.    and  Min,   Jour.,    vol. 


,   pp.    o25-     Liscusses  tests  of   samplin^  i^chines  ana  ^ives  results 
with  Jones  sai^pler  and  with  riffle  ana  with  cone 


430.     Kic.ball,   J.P.     Differential   sampling  cf   bituuinous  coal-seaiiis.     Trans.  Ai^. 
Inst.  Min.   Enb.  ,  vol.    12,   1^34,   pp.  317-349.      Discusses   structure  of   coal 
seams  and  methods  of    sampling  of  aifferent   state   surveys.      Gives  plan  for 
differential  sampling. 


481.     Kim.,   J.T.     A  laboratory  sampler.      Can.   Min.   Jour.,   vol.   36,    1915,   pp. 

112.      Describes  a  rapid,    accurate  ana.  efficient  device  for  sampling  finelj 
£  round  ore. 


-38- 


Kin^,,  LcM.  Sampling  and  assaying  a  car  of  bonanza  ore.  ian.  ana.  Eci  , 
Press,  vol.  9-s,  1907,  pp.  241-2  -*i.  Lascrices  tne  sc^jdi^  anci-  ;'.'~  ?••".£ 
of  50  tons  of  ere  fro:^  GcldfielJL,  #ov  .  ,  yieluin^  60o  02,  &old  ar.o  7<* 
oz.  silver  perton,  equal  to  about.  -$600,000. 


Kirby,   E.B,      Sampling  and  iLeasure^unt   of   oreboaies  in  ^ine   examination. 
Min.   and  Sci  ,  Press,   vol.   71,    1*^5,   pp.    368,    28-*,   300,  320.      Fnt,  .   and 
Min.   Jour.,    vol.    59,    lot?5,    pp.    196-197,    221-222,    2V7-2-3;    a-ostr  ..  Mines 
and  Minerals,   vol.   20,    1699-1900,   pp.    132-133.     Discusses  methods  oi 
san-pling  and  valuing  ore  in  place, 

Testinb  and  sau.plin^  placer  deposits,     Proc,    Colorado  Sci  .  . 


Soc.  ,  vol.    6,   1G98,   pp.    166-190  ;   abstr,    in  ]£nb,   and  Min,   Jour.,   vol.   68, 
1899,  pp.    130-131;   Min.   and  Sci,   Press,   vol.   73,    Io99,   pp.    637,    666. 

Kithil  ,  K.L.   and  Tavis,   J.A.        Mining  and  concentration  of   carnotite  ores. 
3ureau  of  Mines  jsu.ll.    103,    1917.     Full  aetails  of   sag.il  ing  methcas  with 
illustrations. 

Kitson,   A.E.     bauxite  in  V.'est  Africa.     Report  of  Geol.   Survey  of  Gold 
Coast  for  1919,      Sailing  bauxite. 

Kneff,   C.v;,     A  sacylint   cone.     Jour.   Ind.   anl  Erif.,   Che.ii.  ,   vol.   4,    lt?12,   pp. 
51:2-663,      Describes  a  hopper  through  which  the   ore  is  run  to  prepare  * 
cone  for   quartering.      The  lumps  and  fines  are  well  t.d 


Knox,   N.B,   and  Haley,    C.S,     Mining  of  alluvial    iejycsits,   II.     Min.  Ma^., 
vol.   12,  1915,   pp.    153-133.      Discusses  s-xiplin^,   cy  channeling  ana  by  bulk. 


Kreisinger,  H.  ana  Ovitz,  F.K.  Sampling  and  analyzing  flue  gases.  U.S. 
Bur,  Mines  Uull  .  '97,  1916,  70  fp.  Describes  simple  t^jparatus  intended 
for  use  of  o.en  in  charge  of  boiler  plants. 

Lasarthe  ,  Jules.     Bunker  Hill   shelter*     I£in.   ana  Sci.    Prsss,  vol.   114:,    1917, 
pp.    155-156.     Describes  sampling  cill  for  gola,    silver,  und  lead  ore. 

Lach^und,  Oscar.      Best  netnods  of    sruipling  and  marketing  cres.       Min.  World, 
vol.   34,    1^11,   ^p.   402.      Gives   suggestions  to  ore   snippers. 


Lafferty,   R»F,      Sampling  dredging  grounds.      EnL:  .   and  Min.   Jour.,   vol.    92, 
1911,   pp.   1023-1024.     Discusses  placer  ground  sampling,  and  irills. 

Laist,   Frederick,    and  others.     Electro-  lytic  zinc  plant  of  the  Anaconda 
Company.     Paper  if  A.    I.  M,   ana  M.   E.,   abstr,    in  Min.   and  Met,,   No.    loo, 
Dec.    1?20,   p.   36.      Abstr.   in  Min.   Jour.   London,   vol.    132,    1921,   p.   207. 
Sampling  i^clten  spelter  frcui  ladles. 


Lamble,    3.C.      s^pliflL  afi^-  assayinr  iLolybienua  ores.     Can.  kin.   Jour.,   vol. 
37,    1916,   p.    lc?5.     Describes  coning  ana  quartering  system  in  the  mill 
at  Orillia,    Canada, 

Landis,   E.K.     Sampling  iron-ore.     Trans.  Am.   Inst.  Min.  En^.,   vol.   20,    1691, 
pp.   611-513.     Descrioes  s^juplin/,  car  load  lots  by  nand. 

STATISTICAL  LABORATORY 

UNIVERSITY  OF  CALIFORNIA 
BERKELEY  4,  CALIFORNIA 


4i6.      Lane,   T.C.      Mine   salting.     Mex.  Min.   Jour.,    vol.    12-13,    1*11,   pp.   36-3*. 
Describes  frauds. 

4*7.      Lang,   Herbert.      Management   of   a  country  smelter.      Min.   and  Sci  .  Press, 
vol.   109,    1914,   pp.   4^0-442.     Discusses  sau^lin^  and  buyinc  ores. 

497.      (a)     Lanfetry,   V/.D.     Methods  of  coal   sampling.     Coal  Industry,   vol.  4,    1921 
p.   556.     Brief  discussion  on  iu^ortance  of   sampling  coal  as  an  aid  to 
selling,   with  photographs  of  takin^  samples  at  the  face  and  at  a  tipple, 
and  32  views  cf  quartering   a  sample. 

4»S.     Laschinger  ,  E.J.     New  apparatus  for   sampling  air  for  dust.     Jour.   Chem. 
Met.   and  Min.   Soc.   S.   Africa,   vol.   12,    1*12  ,  pp.   443-446.     Describes 
device  for  sampling  mine  air. 

499.     Lathe,   F.E.     Recent  developments  at   the  Granby  smelter.     Jour.  Can.  Min. 
Inst.,   vol.    13,    1910,   pp.   273-237.     Describes  methods  of    sampling  car 
loads  of  copper-gold-silver  ore,   and  gives  diagrams. 

4a9.      (a)     Lawrence  ,   B.3.     Ore  in  sitht.     Eng.   and  Mm.  Jour.,    vol.   75,    1903, 
.p.   323.     Use  of  the   terns  positive,   probable,    and  possible  ore. 

.5.00.     Lawrie,   Thonas.      Sampling  ore  received  at   the  Sulphide  Corporation's  works 
Australia.      Proc.   Aust~  I.  M.  E,,   No.   31,   1*16,   p.   4.      Sailing   con- 
centrajes  with  scoops  and  ore  by  takin^  so  many  shovelfuls. 

501.  Ledoux,   A.R.     American  methods  of   sampling  ore  and  assaying   copper.     Min. 

Ind.,    vol.    1,    1692,    p.    143. 

502.  _  .      Assays   of   copper  ana  copper  matte,      Trans.   Aa.    Inst.  Min. 

Enfc.,   vol.   25,    ld^6,   pp.   250-292;   discussion,  pp.    1000-1010.     Describes 
takinb  samples  fro^a  car  load  of  matte  -   samples  of  borings  fro^  anodes 
for   series  of  assay  tests,   p.   250. 

503.  _  .     Sampling  argentiferous  ana  auriferous  copper.     Jour.   Can. 

Min.    Inst.,   vol.   2,    1--9S,   pp.    106-113;      Discusses  methods. 

504.  __  .      Sampling  ores  of  Cobalt,    Ontario.      Can.   Min.   Jour.,   vol.  30, 

1*03,  pp.  36c-3/^.     Describes  saLiplim    methods  for  ore  containing  silver 
in  nuggets  and  small  particles. 


505.     _  .     Stories  frcu  a  laborabory.     En&.   and  Min.  Jour.,  vol.    109, 

1920,   p.    13»0.      Soi_e  interesting  history  concerning  British  and  American 
sa*-.plin£,  of  copper. 


505.      (a)     Lee,   C.E.      Sampling  ere  in  a  aine.     En^.   and  Min.  Jcur.  ,   vol.   75, 
1903,   p.   401.     Sampling  accessories  -   tais»   moils,    and  tags. 


506.      Lee,    C.V/*.      Data  of  two  experiments   showing  liquation  in  cyanide  gold 
Proc.   Chem.   Met.    and  Min.   Soc.   S.   Africa,    vol.    2,    1893,   p.    801-603; 
Jour.,    vol.    It    Ij9;'f   p.    116. 


-40- 


5C7.  Leggett,  T.H.  Sampling  large  low-grade  orebodies.  Min.  and  Sci  .  Press, 
vol.  115,  1917,  p.  51.  Compares  ndll  tests  vs.  moil-sampling  and  .con 
cludes  in  favor  of  the  latter. 

508.  Lejeune,   A.S.     Mine   sampling  and  ore  valuation  with  special  reference^to 

the  Witwatersrand  area.      S.  African  Min..  'Jour.,   vol.   22,  pt  .   2,    1^13,  pp. 
146,    179,   263,    292,    316,   344,   3cO,   439.      Discusses  apparatus,   methods, 
assay  plans,   calculation  of  ore  reserves,   sailing  dumps,  faulting  of   ore 
veins. 

509.  Lenher,   Victor.     Contamination  of   laboratory  samples  by  iron.     Jour.^Ind. 

and  Eng.   Che  a.  ,   vol.   4,    1912,   p.   471.     Describes  experiments  that   showed. 
samples  to  be  contaminated* 

510.  LeRoy,   E.     A  water-actuated  sampler.     Min.   and  Sci.  Press,   vol.   106,    1914, 

p.  37c,     Describes  sampler  of   tiltin&  'box  type  . 

511.  Leslie,   E«K.      Milling  operations  at  the  Commonwealth  property,   Arizona. 

Min.   and  Sci.  Press,    vol.    106,    1914,   pp.   722-730.     Describes   sampling 
plant  . 

512.  Leupold,   H.     Improved  sand  and  slime  samples.     Proc.   Cher:..  Met.    and  Min. 

Sac.    S.   Africa,   vol.   5,    1904-05,   pp.    122-  1«3.      Describes  ^ethcds  of 
sampling  to  determine  weight   of   slimes  or   sand  in  a  large  tank, 

513.  Levy,    Ernest.      Mine   sarplin,.  .      Eng.   and  Min.    Jour*,   vol.    76,    1^03,   p.   456. 

In  examining  a  partly-caved  dine,   don1  t  depend  upon  outside  information. 

513.  (a)  _,      Sampling  floor  of  a  wet   level.     Trans.    Inst  .  Min,    and  met., 

vol.    13,   1903-04,   pp.    145-  1*8;   discussion,   pp.    l^o-loO.     Describes  diffi 
culties  and  method  devised  to  overcome   them. 

514.  Lewis,   R.S.     Milling  calculations.     Che^.   ana  Met.   Eng.,  vol.    20,    1915, 

p.   229.     Saa^ling  pulp  for  specific  gravity. 

515.  Lidaell,    D.M.     Influence  of  nudber  of   templet  holes  in  samplin6  copper. 

En^.    an!  MB.n.-Jour.,  vol.   90,    1910,   p.    S53.     riscusses  effect   of  nuuier 
of  templet  drilled  holes  on  the   silver  assay  of   copper  pib- 


516,  __  .   Magnetic  particles  in  copper  bullion  sampling.  En^. 

Min.  Jour.,  vol.  90,  1910,  pp.  752-3S3  .  Discusses  method  of  dealing 
with  magnetic  particles  in  sampling  copper  bullion. 

517.  t  _  .   Metallurgist  and  chemists'  handbook.   1»16,  603  pp.  Dis 

cusses  coal  sampling,  pp.  316-317,  ana.  weights  to  be  taken  in  sampling 
ore,  pp.  314-315. 

516.  __  .   Moisture  in  copper  bullion.  Eng.  and  Min.  Jour.,  vol.  90, 
1910,  pp.  1095-1026.   Describes  tests  to  determine  amount  of  moisture 
present. 

519.  __  Salting  assays  by  salted  cupels.  Eng.  and  Min.  Jour.,  vol. 

95,  1913,  p.  o35.  Describes  experiments  to  test  the  possibility  of 
salting  with  cupels. 

-41- 


520.  _____  .   Saaplint  and  as  saying  in  IvlZ  and  1»11.  Min.  Ind.,  vo.Ts. 
and  20,  1910  and  1911,  pp»  7^2-^06  ana  :'c5-d*s.   Reviews  articles  cri 
sampling  for  the  two  years  and.  ^ives  short 


521.  ______  .   S-:^lin&  coke.   Coal  A_,e,  vol.  o,  1»15,  p.  1-*!. 

of  proper  sampling. 

Sampling  errors  aue  to  copper  bar  shapes.  En  .  ana  Min. 


____ 
Jcur.,  vol.  »2,  1911,  p.  1173.  Reco.--u.ends  a  thin  bc=r  with  a  suAll  bevel. 

•^23.    __________  .  Short  foruila  f  or  samples  cont^inin^.  i-ietallics.  Ent,  .  and 

Min.  Jour.,  vol.  90,  1»10.  Gives  foroila  for  deterr-dnin^,  total  per  cent 
of  i^etallics  thrown  out  at  successive  crushin^s. 

52^-  ___  ,.   _.  Top  and  botton  drillin.  in  ^i^  copper*  En._  .  and  Mm.  Jour., 
vol.  «0,  la»10,  pp.  .b7-db:>.  Discusses  Differences  in  staples  taken  f  roc. 
top  and  frora  bottom  of  the  bar. 

525.  Lieban,  G.O.A.  Apparatus  for  taking  core  sanples  of  sli--.e  deposits,  etc, 

gesundh.  In^,  vol.  43,  1920,  p.  163.  An  iron  trough,  25  to  33  inches 
long  with  a  cover  is  used,  "tfhen  forced  down  into  thick  sli.Le,  vred^e  end 
down,  by  i-iearis  of  an  attachment  the  other  end  is  covered,  and  the  sample 
fro^a  the  particular  point  is  brought  to  surface. 

526.  Lincoln,  F.C.  State  Ore  S?c.pler  of  Nevada,  announces  charges  at  the  Kazen 

sampler,  and  compares  them  with  other  works.  En^.  and  Min.  Jour.,  vol. 
106,  1919,  p.  745. 

527.  Lindbren  ,  J.M.  Sampling  and  analysis  of  Illinois  coals.  Trans.  A*:..  Inst. 

Min.  Em..,  vol.  40,  1»09,  pp.  17-24.   Tiscusses  n,ethoas  of  sac.plin,.  stocK 
piles,  face  sampling  and  keeping,  samples. 

528.  Locke,  C.E.  School  laboratory  work.  Sampling  of  an  ore  containing  coarse 

gold.  Trans.  An,.  Inst.  Min.  Enb  .  ,  vol.  45,  1*13,  op,  251-255. 

526,   (a)  Longridhe,  C.C.   Gold  and  tin  ared_.inf,»  3rd.  ed.,  1*14.  Prospectinb 
and  valuing  placers,  p.  25, 

529.  Lord,  N.tV,  United  States  fuel-testinL  plant  at  St  ,  Louis,  Ho.  Bureau  of 

Mines  Bull,  28,  1*11.  Accuracy  of  aar  samples,  and  moisture  less  in 
samples  . 

530.  Lori,  N.W.,  Holies,  J.A.,  Stanton,  P.M.,  and  Sanfora,  Samuel.   Analysis  of 

coals  in  the  United  States,  •  with  descriptions  of  ^ine  ana  fiela  samples, 
collected  between  July  1,  1*04,  and  June  30,  1?10.  Bull.  '22,  U.S.  Bureau 
of  Mines,  1:/12,  112^  pp.  Describes  i;etnods  of  collect  inL  an:,  analyzing 
sa*.,ples  of  coal  . 

531.  Lorenz,  F.H.  Saltinc  of  ai.nes.  Min.  and  Sci.  Press,  vol.  121,  1*20,  p. 

546.  Putting  gold  into  dynamite,  or  drilling  minute  noles  in  the  face 
and  salting  then.. 


-42- 


532  .   Lo::info/  V,'.J,   Sampling  large  lovv-grade  orebodies.   Min.  Sci.  ?res>o, 
iM,  pp  791-;>52,   Discusses  i  actor  of  number  of  samples 


J33.   Louis,  E.   An  ore-  samp  lint;  device.   2n^  .  and  Min.  Uonr.,  vol.  60.  2'^OS, 

p.  .61.  Describes  a  machine  with  3  V-troughs,  practical  in  the  field  or 
Laboratory. 

533.   (a)  Louis,  Henry.  "Handbook  of  Gold  Milling",  2nd.  ed.  1839,  pp.  .5»1. 

Importance  of  sampling,  and  lab,  methods,  p.  509.  Also,  "The  Dressin^ 
of  Minerals",  1st.  ed.,  1909,  pp.  54n  .  Where  samplers  uiifcnt  be  placed. 

Luetcher,  G.L.   Sampling  of  materials  used  and  produced  in  the  manufacture 
of  iron  and  steel.  American  Manufacturer,  vol.  45,  no,  9,  p.  3.  Ibstr. 
Jour,  Iron  and  Steel  Inst  .  ,  No.  2,  1699,  pp.  472-475.  Describes  methods 
for  sampling  ore  in  nines  and  in  cars  or  piles,  for  reducing  samples, 
for  sampling  coal,  coke,  lia-estone,  pi&  iron,  steel  and  wrought  iron, 
and  furnace  producer  and  chimney  gases, 


534.  (a)  Ludluui,  A.C,  Placer  prospecting  practice .  Min.  and  Met.,  No. 

Nov.  1321,  pp,  27-28.  The  president  of  a  dredge  constructing  company 
discusses  G.H.  Hutton1  s  previous  paper,  and  gives  comparisons  of  sf.rikine 
pits  and  drilling  holes  with  actual  fold  recovery  by  dredfee  near  Lead- 
ville.   . 

535.  Lunge,  G.  Sampling  and  analyzing  ores  and  chemical  products.  En& .  and 

Min.  Jour.,  vol.  35,  1363,  p.  2b6.  Suggest  international  agreement  on 
methods.   .  '  .   . 

636. .  Technical  methods  of  chemical  analysis.   1908-14,  3  vol. 

Sampling,  vol.  1,  pp.  7-17.  . 

537.  MacDonald,  D.F,  and  Enzian,  Charles.  Prospecting  and  mining  copper  ores 
at  Santa  Rita,  N.  Mex,  .U.S.. Bureau  of  Mines  Bull.  107,  1916, .pp.  122. 
Describes  churn-drilling,  sampling,  and  estimation  of  disseminated 

copper  ore, 

533,  MacDonald,  H.J.C,   Standard  mine  cost  statement,  Eng,  and  Min.  Jcur., 
vol.  112,  1921,  p.  127,  He  aji  under  which  sampling  comes. 

539.  MacDougall,  C.W.   Quincy  mine  assay  office.  Eng.  and  Min ,  Jour.,  vol.  61, 

1^06,  pp,  554,  706,  606.  Describes  methods  of  determining  percentage 
of  copper  in  waste  sands,  in  minerals  from  classifiers  and  tables,  and 
in  waste  slag. 

540.  MacFarren,  H.W,   A  sampler ,  Min.  and  Sci.  Press,  vol.  95,  1»07,  p.  677. 

Describes  a  sampler  for  wet  sand. 

541. .   A  sand-tank  sampler,   Min.  and  Sci,  Press,  vol,  97,  li?06r 

p.  636,  Descrites  and  gives  diagram  of  device. 

542. .   Practical  stamp  -mil  ling  and  amalgamation,  3rd.  ed.,  1914. 

Automatic  sailers  are  considered  best,  p.  169.  In  Part  4,  by  C,T. 
Hutchinson,  pertinent  remarks  are  given  on  sampling. 

-43- 


543.     Mandy,    J.T.      Cent  ri  tout  ion  t'    the  j.hil   e  .  pny   _.f    sni^ant   sa...plin,_.       J-^n, 

Min.   Jour.,   vol.    31,    U10,    p,j  ,   71c-72,c.      Discusses  ^nnci^les   of    s^iia 
and   compares  mechanical   s-  ..  pli*1^  ar-a  hana   s-v-iplin^,    favonn&  tno  fervor. 


54-i.     Marriage,    E.C,L'.      Experiences   of  a  custo:     assayer.      En,,,    an-.  Min.    Jour., 
vol.    110,    1^20,   p.    i06.     Always  ex  x.ine   tx.e  original   s^  ie   submitted 
for  assay. 

545.     Marsh,   Robert.      Sa*i;plin<,  anu  assayin,.  copper  ores  of  the  Ely  District. 

Colo.    Sch,   Mines  Quart.,   vol.    30,    l^Oc-C^,   x:p.    ^1-^7.      Describes  iietnris 
both  during  prospecting  and  actual  .Jii 


546,  Mathewson,  E,P.  Ore  saciplin^  by  machine.  En*.,,  and  Min.  Jcur.  ,  vol.  o5, 
Ib08,  pp.  336,  531,  >76.  Compares  accuracy  in  i^dern  works  of  oachine 
samplinL;  with  tno  best  assaying. 


546,  (a)     Mathez,   Au^uste.      Mine  Sia^-liru.      En,,   and  Wtin.   Jour.,    vol.    75,    li/C3, 

jy.  304,     Sampling  irregular  oreboaies,    and  a  le^a  seal  for  sample  ba_s. 

547.  Mathiez,    F.F.      SsunplinL    diamond  de  resits.      Mm.    ?and  Sci.   Pr^ss,    vol.    116, 

l'c/13,    p.   324.      Presents  problems  of    saiv.ling.  dia;;;ond  deposits. 


54.-.     Maxwell,   J.W,     Mill   check  on  uiine  sac;plinL.  .      Eng.    and  Min.   Jour.,    vol.   10-*;, 
1^17,   p.    36^:.      Describes  methods  of  taking    sai.^ples  that   ckecked  closely 
with  idll  test. 

54:?.     McAllister,   J.E.      Greenwood  copper  si-eltin^  works.     Eng.   and  Min.   Jour., 
vol.   i?!,    Ibll,   pp.    1011-1015.     Describes   sauiplin^  arrangements. 


^  .      (a)     McCann,  Ferdinand.      Cyanide  practice  in  Mexico.      1st.   ed.    1^12,   p. 
In  describing  a  number  of  mills,    sar^plin^  is  coverea. 


550.     McDerinott,   Walter.     Mininb  repjrts  ana.  ulne   salt  in  K    Trans,   Inst.  Min.   ana 
Met.,   vol.   3,    lc-^4-^5,   pp.    10o-130.     Describes   experiences  with  frauds  in 
valuin.j,  ore  in  place,    op.    11»-130.     Discussion,   po.    135-137,    140,    145- 
146,    I4r 


551.  McGillivray,    J.D.      Cc&stock  ore   sair.plin^  .      Min.    and  Sci.    Press,    vol.    7^, 

16i?6,   p.    164.     Evidence  on  ere   sa^plin^  L;iven  in   tne  Hale  ana  Norcrcss 
case.     Discusses   sampling   uetnods   in  general  and  tn<-se  used  on  the  6cu.- 
stock  in  particular. 

552.  McGregor,   A.G.     Features  cf  the  ne>-  copper  S:..eltin;_  plants  in  Arizona. 

Trans.   Ai..   Inst.  Min.   En,.,   vol.    55,    l.,16,   pp.    7  .,1-603.      Describes   con 
centrate   sampler,    pj.  .    7c3-7b4. 

o53,     McMillen,   D.A.     An  autc-hudraulic   sa^lin^  device  used  in  Globe  district, 

Arizona.     Ent  .   and  Min.   J  ur.,    vol.   SO,    1^10,   p.   9yb.     Describes  a  machine 
in  which  a  teeter-box  throws  a  valve  and  c-.a^its   stea^i,    or  compressed  air 
to  i^ove   sampler. 


>•*. 


-_ •      Sair.plin£  Icw-^rade  and  irregular  orebodies.     En^.   ana  iviin. 

Jour.,    vol.   90,    1*10,   pp.   750-751.     Discusses  errors  in   the  usual  methods 
and  describes  the   spiral  ii.ethod. 


555.  McNeill,  V;.K.  Notes  en  Cobalt  silver  ores.   Can.  Miin.  Jour.,  vo?..  3.-', 

Jan.  1,  1-03.   G-iveo  s'j-tgesticna  for  samplin;  silver  ^roo  fro^  ucbul 
Ont. 

556.  Megraw,  H.A.   Cyanidaticn  at  the  Liberty  Bell  i-iill.  En,-,  •'ana.  Min  Jc-r. 

vol.  95,  Ibl3,  pp.  •;?-  13,  Brief  description  and  view  cf  -?.uton-.*.  :ic  ta 
sampler. 


557.  _  .   Calculation  of  extraction  in  cyanidation.  En^,  and 

Jour.,  vol.  96,  ls>13,  pp.  -±<*l-  '*<*•*,  discussion,  p.  1230.  Discusses 
of  correct  sampling. 


558.  _  __.   Cyaniamfe  troubles  and  remedies,  II.  En.,,  and  Min.  Jour., 
vol.  b4,  1:?12,  pp.  360-364.  Discusses  inadequate  sampling  methods. 


Mehrinfc,  C.A.  Treatment  of  boiler  fesd  water.  Chen*,  ^na  Met  .  En^.,  vol. 
21,  Isli?,  p.  630.  Metnod  of  collecting  ari^  samples. 

560.  Meiklejohn,  C.A.   Determination  of  available  CaO  in  lin^e.  fin,.,  and  Min. 
Jour.,  vol.  107,  191»,  p.  73^.  Air  ir.ust  be  kept  froi-  the  sample 
tested.  • 


561.  Mein,  V/.?/.  Sai^plint  Icw-^rade  ^r®  deposits.   Min.  and  En^.  World,  vol.  ^2, 

1915,  p,  374.  Methods  at  the  Dome  Mine,  Ontario. 

562.  Meriwether,  H.M,  How  mines  should  be  examined.  Sng.  and  Min.  Jour.,  vol. 

70,  1900,  p.  514.   Cou^ent  on  article  by  O.Ii.  Packer. 

563.  Merrill,  C.Y/.  The  allebect  shortage  in  cyaniue  bullion.  Trans.  Inst.  Min. 

and  Met.  ,  vol.  7,  l-»b-^9,  pp.  223-226;  uiscussicn,  pp.  22o-228.  De 
scribes  a  straight  slotted  so-"  op  sailer  for  cyanide  residue  cf  wet  sand, 

564.  Merton,  A.M.  Specifications  and  tests  for  zinc  aust  .  Min.  and  En^.  World, 

vol.  36,  1^13,  pp.  1227-1226,   Gives  method  for  sa^plin^  keLs  of  the  dust. 


565.  Middleton,  W.B.  Prospecting  tin  land  in  Malaya.  Min.  Jour.,  vol.  lOb, 

lyl5,  pp.  149-151;  Trans.  Inst.  Min.  and  Met.,  vol.  24,  1^1^-15,  pp.  300- 
323.  Discusses  sampling,  pp.  304-305,  and  describes  sa^plin^  tne  bore 
holes,  pp.  314-317,  324-3LJ6. 

566.  Miller,  G.W.  Mine  sampling.  Ores  and  Metals,  vol.  13,  Sept,  1,  ls>C4,  no. 

17,  p,  22-23;  no.  IS,  pp%  23-25;  no,  19,  p,  22.   Discusses  principles  ana 
methods  for  sa^plin^  ore  in  place  and  ^akinfc  £oaps  of  mines  ana  gives  table 
for  estiuiating,  ^ross  valxie  of  ere. 


567.  Millers,  E.W.  Sample  reducing  ii^chine.  En^,.  ana  Min.  Jour.,  vol.  »3,  lc/12, 
p.  4-i4.  Describes  a  uB-cnine  especially  designed  for  i^ixim,  ana  reducing 
coal  samples,  but  also  prcvCtical  for  ether  .id 


567.   (a)  Minaret,  F.H.  Mine  sacplin^.  Eng.  ana  Mm.  Jour.,  vol.  76,  1»03,  p.  421 
Sampling  is  a  difficult  job;  no  college  graduate  should  ba  in  charge  of 
such  work.  Quartering,  numbering,  and  calculating. 

565.  Mines  and  Methods,  Sampling  "joker"  at  Daly-V/est  and  Daly-Jud^e.  Vol.  1, 
1909,  p.  156.  Describes  a  crude  and  inaccurate  sampler  at  the  Daly-V/est 
mill. 

-45- 


563.     __  _.      Ohio   copper  mill,   Utah.      Vol.    1,    1»0»,    ^.    16*.      De 

scription   of   tester-box   sampler. 

570.  Ivlines  and  Minerals.      Automatic   coal    sampler.     vol.   31,    1^10-11,   p.   ot>. 

571.  __    ___  .      Mechanical   laboratory    sampler.      Vol.    35,    1*11,   p. 

Describes   a  machine  h?.vinfe  a  series   of  hoppers. 

572.  _______  .      Scientific  study  of   copper  deposit's.     Vcl.  31,.  1»11, 

pp.    6o*-6oS.     Describes  graphic  method  for  deducint  wnether  work  in 
progress  is  a  true  drift   cr  is  crosscut  tin£  tne  vein. 

573.  Mining,  and  Engineering  V/orld.     An  Oregon  s....-ple  grinder.     Vol.  3a,    lsO.3,   p. 

21.     Description  ana  drying  cf   s.  simple  ore  ^nndinL  device  used  in 
Oregon. 

574.  ___  .     Cliffs  automatic  ore  s^ler.     Vol.    *2,    1»15: 

p.   93.     Description  and  view  cf  machine  for  crushing  ana  sampling  ore. 

575.  Mining  and  Scientific  Press,    (anonym.  us).     Apparatus  for   sampling  ores.     Vol, 

31,    1575,   p.    12». 

576.  ______        ____  _  _,  Autonatic  ore  sampling.  Vol.  7o, 

,  p.  521.   The  Bridgman  ^achinB. 


577.  _____  |  Coloraac  Pitchblende  Co.     Vol. 

llo,    li?l»,   p,    412,      Selection  or  accurate   sampling? 

578.  __________  _.      Todge   sampling  i_achine,      Vol.   62, 

,  p.    1^3.      Illustrated  description. 


579.     _  ________  .     Flow-sheet   of  Independence 

...ill,    Cripple  Creek,    Cclo.    showint    sampling  plant.     Vcl.    llo,    1^1^ 


.     Foster-Coclidge  autoccatic 


ri__ 

saaoling  machine.     Vol.    64,    1902,   p,   337.     Apparatus  described  couipared 
with  hand  sampling,. 

.     Good  fonn  of   sauiplint  pick.     Vol 


b2,  1»06,  p.  21.  Brief  description  and  drawings. 

582. .  Hints  to  speculators  and  mine 

investors,  vol.  123,  Ib21,  p,  127.  Hint  14,  as  given  in  a  Cornish  publi 
cation  of  1657,  warns  people  that  samples  submitted  may  not  be  from  the 
mine  under  discussion, 

583. .   Idlewild  sampler.   Vol.  ?4,  Io97, 

p.  432.  Gives  brief  description  and  drawings  of  a  tailings  sampler  used 
at  Idlewild  or  Taylor  mine,  Cal. 

.   Improved  automatic  tailin^  sample 


Vol.  84,  1902,  p.  317.  Description  of  device  for  cutting  cut  samples  of 
tailings  that  are  sluiced  from  the 


^ ^ .        In?.ccuracies   in  inill   sauiplint. .      Vol. 

91,    1905,   p.   20.      ris  cuss  ion  •.  f  causes  of  errors. 

.       Lead  sr.eltin^,.     Vol.   52,    Ido6,   p<   7. 


Discusses   sa^plin^,   and  buyin^  of  ore. 


Method  of  arran!/.,in_  u.ine   sa 


Vol.   79,    l.-.^af,   p.   4.      Criticizes  Bancroft's   "foot-ounce"  uethoci  of  val 
uation. 

,       Methods  at  a  Colorado   sampler.     Vol. 


76,    135*8,   p.   564, 


Discusses  methods  6f   sailing   silver  ore. 


samples.     Vol.   4o,    Ic^b4,   p.   352. 


p.   234.     Condetans  inaccurate   sampling  by  raine-o'wners. 


ine  oircners1    sa;rplim  ,     Vol.   73,   lo»6, 


vol.   b2,    1^06,   p.    102,     I'iscusses  ti.ethods  of 


Mine  Siu-plin^,     Vol.   37,    1>03,   p.  78; 


Mine  sai^plin^  av.ain.     Vol.    116, 


p.   44o,      General  discussion  of   subj-jct,    and  conclusion  that  'uininn  is 
selective,    but   s^i:.plin^  is  non-  selective, 

_____  __  _  .        Notes   on  i:rine    sacplin^.      Vol.    dfe,    1904, 

.    55.      Gives  advico  and   su^Kestions   on  oine   saaipling, 


,        Permissible   explosives.      Vol.    122, 


1^21,   p.   96,      S^'-ples   submitted  to  Bureau  of  Mines  for  test   ijust  be 
.  r eptfe sentat ive  * 

] .       Prospecting,     Vol.   123,.  1»21,   p.   82, 

Editor's  note   in  discussi.cn  su^ests  that   a  '  sau-pie!    be   tc.ken,   not  a 
'specimen1  . 

,   Sailing  of  L,inos.   Vol.  121,  1920, 

p,    163,     How  or*  entire  mining  town  aided  in  salting  an  engineer's   samples, 

ID  lint  a  drill-hole  by  dynaoiitin^. 


Vol.    Ill,  la»15,   p,    ?75,     Brief  description. 

,       Sampling  and  assaying.       Vol.   94,    1907, 

pp,   336,   461,    452.      Letters  discussing  errors  in  r&ine  valuation. 

,        Sampling  and  avera^in^   ores.     Vol.   67, 


.1903,   p,   414,      Advises  aaily  sampling  an  working   a  a^ine  ana  the  keepinL 
of   sample     records. 

.        Sampling  lar^e  lov;-trade  orebodies. 

Vol.    114,    1917,    pp.    2*3,    469,    719,    7i,l,    792}    90o;    vol.    115,    1917,   pp,    5, 
113,    115,   30.1,   379,   451,    453.     Editorials  and  discussions   of  methods  of 
mine   sampling,  and  of  mines  tnat   cannot  be 

-47- 


5d  %     ________  .      Sailing  auriferous   quartz.      Vol.    60,    1690, 

pp.   261,   267.      Describes  methods   of   sampling  and  testing  told  quartz. 

502.         ______  .     Saar.pl  ing,  auriferous  concentrates.     Vol.    63, 

"  1691,  p.  2347" 

603.  ___  .   Sampling  gold  quartz.  Vol.  71,  I-y'o,  p. 

117.   Describes  test  for  determining  quantity  of  gold  iLechanically  ccm- 
ijined  with  auriferous  vein  matter. 

604.  ____  .  Testing  ores.  Vol.  72,  lc^6,  p.  1<*5.  De-1 

scribes  crushing  and  quartering  iuethoo.  at  mines. 

605.  _____  __  .  Two  styles  of  tailing  samplers.  ?cl.  t>6» 

190s,  p.  37^.  Describes  briefly  two  automatic  samplers, 

606.  _  _  ;  _____  <  ____  .  A  neat  device  for  sainplint  screenings. 

Vol.  103,  Isll,  p.  595,  Below  a  screen  is  a  slotted  one-inch  pipe  which 
catches  some  material  passing  thru  the  screen. 


607.     _  __  ____  __  _  .     Valuation  of  mines;   editorials,   vol. 

1921,   pp,   37i>  and  4:86,      Sampling  7  old  Coinstock  uj.nes  and1  proposed  oper 
ations;   ana  difference  between  sampling,  and  mining. 

606.     Mininb  Journal.     Robeson'  s  continuous  autoajatic  sailer  for  sta^p  batteries 
Vol.    75,    1904,   p,    475.      Description  of   sampler  , 

609,  Mining  Magazine,      Sampling   and  esti  natinL  Messina  copper  ore   reserves. 

Vol.    13,    IS  15,   pp.   320-321.     Describes  face  sauiplin^  and  car   sampling   in 
the  Transvaal, 

610.  _______  .      Selling,  tin  concentrate.     Volt    6,    lc?12,   pp.   2o-26. 

Mentions  some  peculiarities  of   the  Cornish  system  of   saiuplint.  tin  or3s. 


611,     Mining  Reporter*     Notes  on  saiiplin^..     Vol.   44,    1901,   pp,   315,    423,  '*47, 

465,  4oc,  513;  vol.  45,  li/02,  pp.  ^,  117,  156,  206,  24^,  372,  3K,  337, 
362,  408.  Discusses  methods  of  sampling  and  describes  in  detail  several 
s  amp  1  i  ng 


512.     ___   .     Procedure  to   be  used  in  s?.mplin£   and  settling  ores   shipped 
to   the  U.S.R'.   Go,  Vol.   53,   May,   31,    1906,  p,   533.      Gives  copy  of   sampling 
regulations  issued  by  the   company, 

613,  Mining  Science,     Fairchild  tailings   sacqpler.     Vol.   6-*,   1^11,   pp.   279-2cO. 

Describes  a  s-iiLplor   v/ith  vertical  axis  rotated  by  pu&p. 

614.  Mixer,   C.T,     Methods   of   sampling  iron  ore,     Proocoed.   Lake  Superior  Min. 

Inst..,   vol.   4,    Ic96,   pp,   27-33.     DescriDes  a^thods  of  sau.plin6  used  by 
four  companies. 

61-4.      (a)     Moline,   A.H.P.        Calculating  percentage  of  racovery  in  concentration. 
Min,   and  Sci,   Press,    vol.    117,    1»1:  ,   p,    1;?2.     Accuracy  of   calculations 
depends  upon  reliable   sau-v.-lin_    of  feed  and 


.5,     Monahan,   F,Y/.     Device  for  sampling  zinc-box  solutions.     Eng,   and  Min, 

Jour.  ,  vol.    39,    1910,   p.   o51.      Dascrioes   siphoning  a  sample  of   cyanide 
solution  witii  a  bottle  and  a  cotton  wick. 

6,     Montanistischen  vereinirn  Erz^ebir^e  Geitscnrift.     Musterentnahme  von 
Erzen,      (Taking  samples   of   ores)     Dec.    1,    la!2,   p.    ^61. 

.     Moore,   M.S.     Report  on  the  Blue  Tier  tin-field,   T^si^ania.      Suppl.  No.    1, 
Proc,   Australia  Inst.   Min.  Enr,.,    Dec,   30,    1»12, 

,8.     Morgan,  J.C.   and  Barrett,   E,P,     A  chemical  laboratory.     Min.   and  Sci. 

Press,   vol.    120,    1920,   p.   300.     Plan  of  Bureau  of  Mines   laboratoiy  at 
Salt  L-^ke  City,    showing  place  for  samples. 

L9,     Morgan,  P.G.     Difficulties  and  errors  in  sampling  ores  of   gold  and  other 
cetals.     New  Zealand  Mines  Record,   vcl.   6,   Oct.   16,    1902.     Gives  di 
rections  for  sa 


20.     Moses,  F.G.     Soling  of  churn- drill  prospect  hc>les.     Eng.    and  Min.   Jour., 
vol.   100,    1915,  pp.  301-30*.     Discusses  difficulties  with  dart-valve 
boilers,  .through  foreign  rock  getting  into   sludge,    and  precautions  to 
be  observed  in  drying   sacples.      Describes  splitter  for  reducing   samples 
automatically. 


Mess.  H.W.     Sampling  and  weighing  lead  ores.     Trans./ Inst .,    vol.    d,    1^01, 
p»   92.     Describes  methods  in  use  at  Broken  Hill,   Australia. 

33.  Muir,    D.D.     Sampling  low-^rade  ore   on  a  large   scale.     Min.    and  Sci.   Press, 

vol.    Ill,    1915,   pp.   737-741,    cogent  p.   730.     Describes  and  compares  au 
tomatic   sampling  and  the  concentrate  method  used  on  gold  ore  in  Alaska, 

34.  Munroe,   H.S.     Losses   in  copper  dressing  in  L?.ke  Superior  district,      Trans . 

Amer.    Ins,t.   Min.   Eng.,   vol.   6,    1579,   pp.   409-451,      "Sampling  of   sands, 
assays,    etc".,   p^^20, 

Mine   samplinb  ana  valuation.      Min.   and  Met.    Soc.   Am,  ,  Bull. 


44-45,    1912,   pp.    116-122;   Min,   ana  Sci.   Press,   vol.    1Q5,    1»12,   pp.    16- 
Enfe.   and  Min.   Jour.,   vol.   93,    Iyl2,   pp.   1276-1277.     lyi-^cusses  methods 
and  problems. 

26.  __.     Sampling  hdne  dunps.      School  of  Mines   (Columbia)  .Quarterly, 

"  vol.   XXEX,    April,    1906,   p.    233.     The  natural   sizing  of  ore  on  dumps, 
and  sinking  samplint   shafts  lined  with  corrugated  iron. 

7.  Murray,  C.3.  Meed  of  uniform  methods  of  sampling  Lake  Superior  iron  ore. 
Trans.  Am,  Inst.  Min.  Eng.,  vol.  50,  1914,  pp.  204-210,  discussion  210- 
230,  Describes  various  methods  and  surest  s  a  method  for  sanplin^  cars. 

e.     Myers,   7,'ilber.     Grading  iron  ores.     En^.   and  Min.   Jour.,   vol.   97,    1914, 
pp.    1203-1205.     Describes  d,*;ily  sampling  of   ore  at  the  ^ice, 


9.     Nae  thing,   F.S.      Diamond  drilline  at   the  Miaiu  mine,   Arizona.     Eng.  and  Min. 
Jour.,  vol.   97,   1^14,   pp.    lC3^-104l.      Describes  s^Jipling  and  recording 
methods  . 


-49- 


63C.     Nagel,    0.      Layout,    lesion,    and  construction  of    chemical  and  metallur£ical 
plants,      1911,    2C6  p^.      Describes   sampling   nill,   pp.    63-64^   and  dir- 
cusses   layout,    design  and    construction  of    sampling  plant?,   pp.    c2-co  . 

631.  N^son,    A.  A.      Sampling  ores  from  Cobalt    nines,      En^.  .    and  Min,    Jour.,  vol.    '; 

1911,  p.   114^;   vol.   b2,    1911,   p.    ol.      Criticizes   article   by  F.Y,'.   Pugsle; 

632.  Newberry,   A.V.-'.     Drill-hole   samples  in  raising.     Eng.   and  Min.   Jour.,   vol. 

97,    1914,   p.   709.     Describes  r:.othods  in  sapling  a  mine  by  drilling  intc 
a  raise, 

633.  Newhourse,   E,L.     Ore   sampling   and  buying  in  Mexico.     Eng,    and  Min*  Jour*, 

vol*   49,    1890,   p.   535.     Describes  rtethod  of   saiLpling.   at    nines. 

634.  Nichols,   H.G.     A  pulp-stream  sampler.     Ent.    and  Mm.  Jour,,   vol.   97,    It>l4, 

p.    19. 

635«  _  •  Treatment  cf  tin  ores  in  Cornwall.   Trans.  Inst,  ivdn.  and 
Met.,  vol.  25,  1^13-14,  pp.  o5-100.  Describes  an  improvement  on  the 
Elinore  sampler,  p.  b:5-i>6. 

636.  Nicholls,  fi.E.  A  method  of  testing  alluvial  deposits.  Trans.  Inst.  Min. 

and  Met.,  vol.  U,  1*05-06,  pp.  195.  Describes  method  of  testing  larfee 
alluvial  flats  for  gold. 

637.  Nissenson,  -   Bleierzbemusterwit  .  (Sampling  lead  ore)  CheiJiker-Ztfe.  , 

Jahr.  37,  1913,  p.  1136.  Describes  methods  of  reducing  size  of  samples 
for  different  kinds  of  ore. 

633.  North,  Vv'.O.  Milling  at  United  Eastern,  Arizona.  Bull,  152,  Aub.  1»1», 

A.I.  M.  &  M.  E,,  p.  1189.  Sampling  methods  from  feed  to  residue.   Cost 
is  4/10  of  1  cent  per  ton. 

639.  Dates,  J.H.  Battery  feed  sampler.  En£.  and  Min,  Jour,,  vol.  69,  1910,  p. 

1005.  Describes  a  tLachine  with  a  sheet-iron  box  on  a  swin^in^  arm,  and 
hinged  bottom  opened  by  tripper  at  receiver. 

640.  O'Brien,  T.F.  The  Koerin^  process.   Min.  and  Sci.  Press,  vol.  122, 

p.  523.  gamplos  of  feold  ore  said  not  to  yield  gold  by  assays. 


641.     Oke,    A.L.     A  crude  but   efficient    sampler,     Eng.   and  Min.   Jour.,   vol.    87, 
1909,   p.    ^»0.     Describes  and  gives  views  of  i-a 


642*     —  —•  ;—  '     Cutting  floor  s-.r.ples.     En;,,    and  Min,   Jour.,   vol.    *7,    1^14,  pp. 
b50-^51.     Describes  and  gives  figures   showin.    device   to   catch  flyin, 
pieces, 

643«      -  •      Keeping   records  of    nine   sa^plin,  .     Mex.   Min.   Jour.,    vol.    19,    19] 
pp.   213-215.      Describes  ii.etliods  ad  -p  ted  to  ScULplint  vein  formations. 

New  samplin.;.  device.      En0.    and  Min.   Jour.,    vol.  66,    IcJOc,   p.    12< 


.  .,  .        ,  , 

Describes  a  device  with  -    set   of   sloi.  ms,   rifflos,    like  H&ultain's. 


-oC- 


Office  records  of  alne  s^x-plin^.  Mex.  Mi'n.  Jour,, 


_  __  _____  , 

12-13,  li;ll,  px.-.  50-61.  Describes  for-s  and  ^etnoas  used  v.lch  native 
assistants  on  silver  ana  gold-silver  veins  in  Argentina, 

___  _  _•  Riffle  for  reducin^,  samples.  En^.  and  Min,  Jour.,  vol. 
97,  1914,  p.  620.  Describes  a  portable  sampling  riffle. 

647.  _  .  Sample  catcher  for  backs.  Eng,  and  Min.  Jour.,  vol.  9o, 

1914,  pp.  1096-10:77.  Describes  canvas  bat  used  when  sampling  tne  back 
of  a  working,  in  order  to  prevent  loss  of  any  material  broken, 

648.  __  .  A  sample  crusher.  Eng.  and  Min.  Jour.,  vol.  ?1,  1»11, 

p.  55£,  Describes  and  illustrates  ho^-made  crasher  for  mine  s 


64i>,  _  .  Aids  to  the  Engineer.  Min.  Mag.,  vol.  10,  1914,  p.  370. 
Discusses  sailing  fetcpes  in  South  America. 

650.  Oldfield,  F.7/.  A  s-mpler.  Min.  and  Sci.  Press,  vol.  *5,  1907,  p.  807. 

Describes  a  sampler  for  wet  s^jnd. 

651.  Olver,  J.S.  Rand  s?ji.pling  practice,  iibstr.  fdn,  and  Sci.  Press,  vol.  97, 

1908,  pp.  674-675.  Describes  various  methods. 

651.  (a)  Odernheir^er,  E.   Sampling  calcium  carbide.  Checker  Zeitung,  vol. 

26,  1902,  p,  703.  The  compusition  is  variable,  due  to  unconverted  liiae 
and  coke.  A  drum  should  be  emptied  on  a  metal  plate,  and  after  the  dust 
is  distributed  evenly,  take  two  1-lb  samples.  Lots  of  100  drums.  may  be 
sampled  by  drawing  from  each  tenth  drum.  A  respirator  should  be  worn 
during  this  work, 

652.  Orthey,  Max.  Probenahme  and  Analyse  der  Proben  auf  Eisenhuttenwerken, 

(Sampling  and  analysis  of  iron  samples  in  blast-furnaces)   Metallurgie, 
vol.  4,  1907,  pp.  265-277. 

653.  Pacific  Coast  Miner.  An  automatic  sand  sampler.  Vol.  15,  ly09,  p.  96. 

653,  (a)  Packard,  G.A,   Sampling  and  estimation  of  ore,  vol.  76,  1^03,  p.  116. 

Effect  of  high  and  barren  assays  upon  averages. 

654.  Packer,  .O.K.  How  mines  should  be  examined,  En^.  and  Min.  Jour,,  Vol.  70, 

1900,  pp,  457-458.   Discusses  sampling  methods  and  tsives  instructions 
for  examining  and  sapling  a  mine. 

655.  Palmer,  C.S.  An  experience  in  sampling.  Mining  Reporter,  vol.  50,  July 

28,  1904,  p.  65.  Discusses  effect  of  fineness  of  sample. 

656,  _  .  Notes  on  sampling.  Eng.  and  Min.  Jour,,  vol.  t-0,  1905,  p« 

405.  Presents  difficulties  of 


657.  Park,  Jaues.  Mine-  sampling  and  ore-  valuation.  New  Zealand  Mines  Record, 
vol.  8,  Mar.  16,  1S05,  p.  32?.  Discusses  equipment,  record  of  samples, 
sampling  ore,  assaying,  sampling  dumps  and  tailings,  <'?nd  salting  cf 

-ol- 


658.  Parker,  E.ft,  Holmes,  J.A,  ,  and  Campbell,  M.P.  Report  on  operations  of  the 

government  coal-testing  plant  at  the  Louisiana  Purchase  Exposition,  St. 
Louis,  Mo.  1904.   U.S.  Gaol,  Surv.  Prcf .  Paper  4o,  1906,  3  vols.  Dis 
cusses  commercial  value  of  coal-mine  sampling*  pp.  142-155. 

659.  Parker,  R.A.  Mine  sampling.  EI%.  and  Min.  Jour.,  vol.  76,  1^03,  p.  4. 

Danger  in  mixing  damp  samples  on  canvas;  a  specific  instance  of  wide 
difference  in  assays,  Discussion  of  W.L,  Austin  en  same  point,  p.  116. 

660.    .   Sampling  large  low-grade  orebodies.  Min.  and  Sci .  Press, vol, 

114,  1917,  p.  £03,   Gives  suggestions  for  sampling  gold  deposits. 

661.  Parmelee,  B.C.   Cyanidation  of  low-^rade  sulphide  ores,  in  Colorado.  Met. 

and  Chei...  En*,.,  vol.  13,  1^15,  pp.  421-425.  Describes  samplim  plant. 

662.         .  Some  assay  results  from  re-samplea  cres.  Western  Chem. 

and  Met.,  vol.  1,  1905,  pp.  Io2.  Ascribes  the  lowering  of  value  in  re 
sampling  to  loss  of  dust  carrying  high  metal  content. 

663.  Parr,  S.W.   Chemical  study  of  Illinois  coils.  111.  Geol,  Surv.,  Bull.  3, 

1916,  c<6  pp.  Gives  methods  of  field  samplinbj  pp.  11-26. 

664. .  Principles  of  coal  sampling.  Sci.  Am,  Suppl.  ,  vol.  -0,  1*15, 

pp.  15-16. 

655.     Parsons,   A.B.     Nevada  Consolidates  Copper  Co..     Min.   and  Sci.   Press,   vol. 
122,    1921,   p.   525.      Sampling  and  estimating  the  deposit  fron  churn- 
drilling. 

666.     .     Operations  of   the  En^els  Copper  Mining  Co.,    Calif.     Min. 

and  Sci.  Press,   vol,    123,    1^21,    ,;p,    189  and  193.     Flow- sheet   cf   call 
shows  position  of   three   samplers,   which  are  described  as  bein^  autOLoati 
cf   the   swinging  type.     They  take   samples  of  feed,    concentrate,    and   tailin 
and  are  very  reliable. 

667.     .      Sampling   at  Garfield  smelter,     Min,    and  Sci.   Press,   vol.    122 

1921,   p..  17,     Description  of  how  concentrate  is   sampled. 

667,      (a)     Parsons,   L.A.     Mill-tests  v.   hand- samp  ling.     Min.   and  Sci.   Press,   vol. 

115,  1917,   pp.   781-752.     Discusses  advisability  of   of  usinr  Webber's  plan 
fcr  checking  hand  sampling  by  udll-test. 

667.  (b)     .      Sampling  an  erratic  orebody,     Min.   Mag.,    vol,    13,    1915, 

pp.    lol-154;   Min.    and  Sci.   Press,   vol.    114,    1917,   pp.    724-726,    903-910. 
Describes  methods  and  discusses  principles. 

668.  Paterson  ,  G.S.     Prospecting  for  alluvial   tin  in  Nigeria.      Min.  Mag.,   vol. 

12,    1915,   pp.   33-41.     Discusses  pit   and  drill   sampling  and  gires  figures 
showing   sampling  method  and  apparatus. 

669.  Patterson,   B,G.   and  Thomas,   G.A.     Mount  Morgan  (Queensland)  practise  of 

estimating  ore  reserves.     Trans.  Aust.   I.   M.  E.,   vol.    15   (l),    1911,   p. 
301,      gampliiig   of  certain  blocks  of  grouncd  done  at  night,    and  assayed 
next  day,   thus  keeping  a  close  check  on  nailing. 

-52- 


670.  Poad,  O.K.  An  autota?tic  sampler  for  tailing,  sand,  and  slime. 

Chen.,  Met,  and  ton.  Sec.  S.  Africa,  vol.  3,  1902-03,  pp,  360-361;  Min. 

and  Sci.  Press,  vol.  66,  1903,  pp.  <*10-411  ;  Min.  Jour.,  vol.  73,  1903, 
p.  766.  Describes  a  sampler  run  by  water. 

671.  Pearce,  J.A,  Ore  sampling  at  a  custom  call.  Eng,  and  Min.  Jour,,  vol. 

104,  1917,  p.  66.   Describes  methods  at  the  Argo  iid 


672.  Pearce,  S-.H.  gotno  notes  on  nine  surface  sampling,,  Min.  and  Sci,  Press, 

vol.  79,  1899,  pp,  515,  549;  Mines  and  Minerals,  vol.  20,  1900,  pp.  3*1- 
394,  Discusses  methods. 

G7P-.  (a)  Peele,  Robert.  Mining  Engineers'  Handbook,  1st.  ed.  1*18,  pp*  2375. 
In  7  sections,  by  7  engineers,  are  -notes  on  sampling,  orebcdies  and  mill 
products, 

673.  Pelton  ,  E.F.  A  system  cf  mine  sampling.  Eng.  and  Min.  Jour.,  vol.  94, 

1912,  pp.  403-404,   Describes  method  cf  close  sampling  in  use  at  Morenci, 

Ariz, 

673.   (a)  Percy,  John,  Metallurgy  -  silver  and  gold,  part  I,  16bO,  pp.  696. 
ing  of  silver  ores  described,  p.  241. 


674.  Perret,  L.A,  Russian  placer  mining.  Min,  and  Sci.  Press,  vol.  122,  1921, 

p.  457.  Pit  and  drill  sampling. 

675.  Peters,  E.D.  Modern  copper  smelting,.   1695,  642  pp.  Discusses  sampling, 

pp.  3Q-<±1, 

676.  ___  .  The  practice  of  copper  smelting   1*11,  693  pp.  Discusses 

sampling  of  copper  ores,  pp.  b-20. 

677.  Pierce,  A.R.  Sampling  large  low-grade  ore  bodies,  Min,  and  Sci.  Press, 

vol.  119,  1919,  p.  396  and  553.  Discussion  of  mill  tests  and  hand 
sampling. 

67b,  Pope,  G.S.  Directions  for  sampling  coal  for  shipment  or  delivery.  Tech. 
Paper  133,  U.S,  Bureau  of  Mines,  1917,  15  pp.  Summarizes  U.S.  Bureau 
of  Mines  Bull.  116. 

679.  _  ,  Methods  of  sampling,  delivered  coal  and  specifications  for  the 
purchase  of  coal  for  the  Government.  U.S.  Bureau  Mines  Bull.  116,  1916, 
64,  pp,  Describes  nacre  fully  the  methods  given  in  U.S.  Bureau  of  Mines 

gall.  63- 

660.     ___  ,  Sampling  coal  deliveries  ,  and  types  of  government  specifica 

tions  for  the  purchase  cf  coal.  U.S.  Bureau  Mines  Bull.  63,  1933,  66  pp. 
Describes  in  detail  the  methods  of  sampling  and  the  reasons  therefor; 
gives  new  specifications  for  the  purchase  bf  coal  by  the  Government. 

681,  Poston,  R.K.   Carrier  for  nill  sample  pans.  En^.  and  Min.  Jour.,  vol.  10<J, 
I9l»,  p.  fc02.  A  wooden  cabinet  2*±  in,  high  with  9  shelves  is  used. 


-53- 


6^2.      Power,   F,   Danvers.      Sa^lint  ores  on  the  west   ccast  of  Tasmania.     Trans. 
Australian  Inst.   Min..  Eng,  ,   vol.    3,    1395,   p.    237.      Describes  business 
c&fclwfcfs, 

683.     Pew?,r,      Collecting  and  preparing   Camples  of  coal  deliveries.      Vol.   43, 
1916,    p.    864,      DA  scus?es  and   illustrates   quartering. 

664.     Power  and  the  Engineer*      Sa^plin^.  and  analysis   of   coal.      Gives  methods  of 
sailing  and    ts^tiiie-  Msed  by   the    technologic  branch  of   the  U.S.    Gecl, 
Survey.    Voil  .   Jl,    .V.-./09,   pp.    477-480. 

* 

655.  Pries,  G,W,  The  Cananea  ore-bedding  system.  Min.  and  oci  .  Press,  vol. 
11^,  1*19,  p.  66.:.   Sampling  axed  copper  ores,  and  the  cost. 

6-6.  Prutzr^n,  P.W,  Petrcleuu'  in  Southern  California.   State  Mining  Bureau 
Bull,  63,  1913.  Selection  and  analyses  of  Sc 


637.  Paisley,  F.W,      Samplin^,  ores  frorr-  Cobalt  rones.      Eng,   and  Min.   Jour.,   vol. 

91,    1*11,   p.    776;    vol.    92,    Ibll,   p.   5.      Discussion,    vol.    91,    1»11,    p. 
1144;    vol.    92,    1911,    pp.    5,    51. 

666.     Pulsifer,   H.B.     Ore-  samp}  ing  in  Montana.     Min,   and  Sci  .   Press,    vcl,    121, 
1920,   pp.   866,     A   study  of   custom  ore-saiAplin^  plants   in  Montana,   fully 
illustrated.     Editorial  cogent   on  p.    s60. 

6c6.      (a)     Purinfcton,    C.V/.        Esti  nates  of   ore   in  a  iidne  .      Eng  and  Min.   Jour,, 

vol.    75,    Ib03,    p.    552.      Discussion  of    G.E.    Ccllin's  note.      Consideration 
of   tne  systarn  of   ore-snoots  in  a  mine,    as  opened,    of   importance. 

638.  (b)         ____  .        Gravel   and  placer    rdning  in  Alaska.      U.S.    Geol, 

Survey  Bull,    263,    1905,   p.    273.      Necessity  for   sa^plin^  discussed  pp. 
42  and  53. 

689.     Pye,    A.M.     Methods  of    sampling.     Australian  Min.    Standard,    vol.   3^,    l»0o, 
p.    24^,      Describes   rather   crude   net  hods  used  in  Australia. 

6=«0.     Radford,   W.J.      Methods  of   testing  placer  ^ravels.      Min.  .and  Sci.   Press, 

vcl.    109,    1^14,   pp.   5  and  221.      sampling  by  panning,    shafts,    and  anils, 

6S1.     Raht,    A.      Distribution  of   silver  in  lead,   oullion  and  the  different  methods 
of   sampling.      Mic.    Ind.,    vol.   3,    1894,   pp.   414-41&  .      Describes   methods 
in  the  United  States  and  advocates  dip-  sarnie  s. 

692.     Ransou.e,   F.L.      Copper  deposits  of  Ray  and  Miani,   Arizona*     U.S.   Gecicgical 
Survey  P.P.    115,    iil»,    pp.    122.      Importance   of   correct    sampling   of   dis- 
sendn  =  ted  copper   ores   (p.i»2.) 


6'93  ,  Rattle,  W.J.  and  Son.   Cargo  sampling  of  iron  ores  received  at  Lower  Lake 
ports  -  including  the  methods  used  in  the  analysis  of  the  Ea&e  .   L^ke 
Superior  Min.  In  si.,  vcl.  11.  1S05,  pp.l'*3-lSO;  Eng.  and  Mm.  Jour., 
vol.  80,  1905,  pp.  824-825;  Mines  and  Minerals,  vol.  26,  1906,  pp.  316- 
319;  Iron  age,  vol.  76,  1905,  p.  1162;  Iron  Trade  Rev.,  vcl.  36,  no.  42, 
Oct.  19,  1905,  pp.  23-29. 

-§*- 


,  R&wlins,  S.L.   Samplin?  cine  duarps .  Man.  and  Sci.  Press,  vol.  97,  I-OS ,  p, 
120.  Describes  methods  used  on  old.  Spanish  dumps. 

>95.  Sajmond,  R.E,  Sampling,  large  1  o'.v- grade  creb odd es.  Min<  and  oci  Prtss, 
vol.  115,  1917,  p«  301,  Describes  mines  in  Juisbouir  'that  can  not  be 
sampled. 

,   (a)  Read,  T.T,  The  Mason  Valley  Copper .Shelter,  Nevada,  Min.  and  Sci. 
Press,  vol.  105,  1912,  p.  267.   Describes  sampling  cf  ere, 

6.  Reed,  S,A.  More  remarks  on  ore  sampling.  Sch,  Mines  Qaart,,  vol.-,  3,  16b2, 
p.  253;  vo],  6,  1684-35,  pp.  351-358;  Min.  and  -Sci*  Press,  vol.  -i5,  3.db<3, 
pu  9.  Illustrates  split- shovel  and  riffle- shovel  sampler  with  fi^ed 
scoop  and  some  types  with  moving  scoops. 

697,  Reinecke,  L,  and  Clark,  K.A.   Sampling  deposits  of  stone  and  gravel  in 
the  field.  Proc,  Am,  Sec.  Testing  Materials,  vol.  18,  part  2,  1913,  p, 
393.  Methods  for  sampling  and  testing  rock  for  concrete. 

693.  Reyburn,  S.tiT.  and  Zimmerman,  S.B,  Diamonds,  in  Arkansas.  Eng.  and  Min, 

Jour.,  vol.  109,  1S20,  p.  S53.  In  sampling  Arkansas  Diamond  Corp.  proper 
ty  in  Pike  County,  120,000  tons  of  rock  and  clay  is  to  be  milled  and 
washed. 

699.  Reynolds,  O.J.  Sampling  a  difficult  ore.  Cal,  Jour,  of  ^Technology,  vol. 

vol.  5,  no.  1,  1305,  p.  39.   Describes  car  load  sampling  of  ore  carrying 
gold,  silver,  lead,  and  zinc. 

'  r 

700.  Rice,  C.T.  Grab  sampling  in  stopes.  Eng.  and  Min.  Jour,,  vol.  92,  lall, 

p,  741.  Describes  accurate  methods  of  taking  grab  samples. 

701.   .  Sampling  practice  at  Independence  nill,  Eng,  and  Min.  Jour., 

vol.  107,  1919,  p.  641,  Describes  appliances  used, 

702.  Rice,  E.R.   Churn-drilling  of  disseminated  copper.  Eng.  and  Min,  Jour., 

vol.  Ill,  1921,  p,  1058;  and  vol.  112,  1921,  p.  11.   Sampling  and  assaying 
the  sludge. 

702.  (a)  Rice,  G,S.  and  others.  First  series  of  coal-dust  explosion  tests  in  the 

Experimental  Mine.  U.S.  Bureau  of  Mines  Bull.  56,  1913,  p.  113.  Method 
of  sampling  afterdamp  and  other  gases,  pp.  36,  54,  107. 

703.  Rice,  J.H,  Methods  of  sampling  ore  in  place.  Min.  and  Sci.  Press,  vol. 

97,  1908,  p.  3d2.   Criticizes  inadequate  methods  and  advises  the  sampling 
of  each  streak. 

704.  Richards,  R.H.  Ore  dressing,   1st.  ed.   1909,  4  vols.,  2052pp.   "Samplers", 

vol,  2,.  pp.  643-852;  vol.  3,  pp.  1570-1573. 

705. .      Text  book  of   ore  dressing.      1st.    ed.        1909,    702pp.     Dis-- 

cusses  difficulties   of   sampling,    compares  hand  ard  machine   sampling,   dis 
cusses  taking  pioicture   samples,    size  of   samples,    limits   to  machine 
sampling;   describes  and  compares  the  Vezin,    the  Snyder  and  tne  i>runton 
samplers,  pp.   430-435. 

-55- 


705.  (a)  Rickard,  Forbes,  xina  saiuplin^.  En;.,  and  ivftn.  Jour.,  vol.  ?ft,  190' 

p.  921.  Sampling  of  a  sampling.  or  checking  the  average  of  a  nv.'-.tc-  c? 
samples  by  s/amplirv  the  quartering. 

706.  Rickard,  T.A.  Bunker  Hill  enterprise,  Idaho,  Win.  and  Sci  .  Pres?,  vol. 

120,  12*20,  pp.  489  and  527.  Flow-  sheets  showing  position  of  sample/?  : 
the  load  mill. 

707.  _  .  Bunker  Hill  smelter,  Min.  and  Sci.  Press,  vol.  122,  1921, 

p,    47,      Saripling  mill   at   lead   smelter, 

708.  __  .     Old  Mexican  workings  and  some  remarks  on  sampling.     Min.   ar 

Sci.  Press,  vcl.  94,  1907,  pp.  433-435.  Describes  methods  of  sampling, 
buying,  and  selling  among  the  Mexicans. 

709.  ___  .     Re-openin^  clu  mines   en  the  Mother  Lode,   Calif.     Min.   and 

Sci.  Press,    113,    1916,   pp.   238  and  240,     Flow-  sheet  'Shows  position  of 
sampler  in  mill;   and  notes  on  sampling  practise. 

710.  _  _  .,   and  Others,   under  own  names.      Sampling  and  Estimation  of  Oi 

in  a  Mine.  5th  impression,  1907,  p,  .222.  A  symposium  oil  mine  sampling 
by  27  engineers.  Reprint  fromEng.  and  Min.  Jour.,  vols.  75,  1903;  76, 
1903;  77,  1904. 

710.      (a)     _  _  .       Sstupling  and  estimation  of  ore  in  a  mine.     Eng.   and  Min. 
Jour.,  vol.   75,    1903,   pp.    213,    254,    290,    362,    438,    515,    555,    590,    626, 
662;   vol.   76,    1903,  pp.   305,   345,   498.     The  whole   subject   lucidly  dis 
cussed.     Following  these  were  the  views  of  26  engineers,   which  were  re 
printed  in  Sampling  and  Estimation  of  Ore  in  a  Mine,    1904,     A  review  of 
the   symposium  by  T.Ai   Rickard  in  vcl.   76,  1903,   pp.   305,   345,  498,    730, 
and  also   re-printed, 

716.  (b)  __  _  .  St  imp-milling  of  gold  ores.  2nd.  ed.,  1898,  p.  260.  Auto 
rnatic  sampler  described  on  p.  50,  and  the  lack  of  regular  sampling  dis 
cussed  on  94  and  241. 


Utah  Copper  enterprise.  Min,  and  Sci.  Press,  vol.  117, 


1918,  p.  477,  sac-pie  plan  of  ore  deposit;  p.  716,  automatic  sampler  in 
the  mill;  p.  853,  sampling  flotation  concentrates, 

712«  ___  .   Valuation  of  mines.  Min.  ana  Sci.  Press,  vol,  106,  1913, 
pp.  766-771.  Gives  advice  to  the  young  mining  engineer. 

713.  Ricketts,  L.D.  Constant  errors  in  sampling  and  assaying.  Min.  Mag,,  vol. 

4,  1911,  p,  127.  Eng.  and  Min.  Jour.,  vol.  90,  1910,  p.  316,   Discusse 
errors  not  dependent  on  the  doctrine  of  chancs,  in  sampling  porphyry 
copper  deposits,  for  instance. 

714.  Reifsnyder,  S.K.  Some  experiments  on  sampling  quartation.  Jour.  Am.  Chem 

Soc.,  vol.  15,  1893,  pp.  260-265.  Describes  mixing  shot,  ore  (magnetit* 
and  glass  and  dividing,  after  nixing  by  inquartation  to  determine  the 
error  with  both  dry  and  wet  material. 


-56- 


715.  Riley,  L.F%  New  simple  device  for  sampling.  Jour.  Soc,  Chem.  Ind.,  vol. 

38,  1»1&.  A  tapered  tube  is  used  for -catching  aust. 

716.  Bobbins,  H.R.   Chart  for  tonnage- samp 3. ing  and  dilution-control,  Min,  and 

Sci.  Press,  vol.  116,  1918,  p.  584.  Gives  chart  for  deiennining  dry- 
tonnage  £er  24  hours,  percentage  of  solid  in  wet  pulp  and  specific 
gravity  of  dry  ore  in  wet  pulp. 

717.  Roberts,  G.M.  Experiments  in  sampling  silver-lead  bullion.  Trans,  An*. 

Inst,  Min.  Eng,,  vol.  28,  1899,  pp.  413-427.  Discusses  sampling  bars 

from  the  liq-iation  furnace  and  bars  from  the  lead  kettles,  touge  and 

chip -sampling,  distribution  of  silver  in  the  bar,  and  loss  of  lead  by 
volatilization. 

718.  Roberts,  H.M.  Progress  in  methods  of  exploration.  Min,  and  Sci,  Press, 

vol.  119,  1919,  p.  55,  A  good  diamond-drill  sample  is  superior  to  any 
other  ore  sample. 

719.  Robey  ,  Llo£d.  Methods  of  taking  mill-head  samples.  Min,  and  Sci.  Press, 

vol.  109,  1914,  pp.  183-184.  Discusses  difficulties. 

720.  Rogers,  A.H.  and  Van  Wagenen ,  H.R.   Chilean  nitrate  industry,  Trans.  Am, 

Inst.  Win,  Eng.  ,  vol.  59,  1917.  Discusses  prospecting  and  sampling,  p. 
11-12, 

221.  Rogers,  A. P.  Dredging  and  the  sampling  of  placer  ground.  Eng,  and  Min. 
Jour.,  vol.  89,  1910,  pp.  561-562*  #ives  details  of  sampling,  geld  ore. 

722.  Rogers,  G.S.  Helium-Bearing  Natural  Gas.  U.S.  Geol.  Survey, P. P.  121,  p.. 

113,  1919.  sampling  and  tests  of  gas  for  helium. 

723.  .  Sunset-Midway  Oilfield,  California.  U.S,  Geol.  purvey,  P.P. 

117,  p.  103,  1919.  Sampling  oil  and  water,  pp.  15  and  52. 

724.  Roller,  A.H.  and  Curran,  H.T.  Cyaniding  sulphide  ores  at  the  Arto  id.ll, 

Idaho  Springs,  Colo,  Mex.  Min.  Jour,,  vol.  18,  1914,  pp.  204-208.  De 
scribes  mill  and  sampling  methods. 

725.  Rollin,  G.S,  Improved  sludge  box  for  diamond  drilling.  £n£  ,  and  .Yiin.  Jcur., 

vol.  97,  1914,  p.  660,  Describes  and  gives  sketch  of  box  for  catching 
samples. 

726.  Root,  J.W.  Sampling  base  bullion.   Western  Chem.  and  Met .,  vcl.  1,  1905, 

p.  221;  Mining  Reporter,  vol.  53,  1906,  p.  129,  Discusses  sampling  base 
bullion  by  punching,  sawing,  dipping  from  the  kettle,  and  casting  from 
the  melding  siphon.  The  rate  at  which  different  sections  of  the  bars 
cooled,  showed  distribution  of  silver. 

727.  Roper,  L.S,  Valuing  partly  exhausted  mines,  Min.  ana  Sci.  Press,  vol.  122, 

1921,  p.  667.  How  sampling  sometimes  does  not  indicate  value  of  a  mine. 

728.  Rose, Hugh,  Santa  Gertrudis  mill,  Pachuca,  Mexico,  Bull.  Am.  Inst.  Min. 

Eng.  1916;  abstr,  Eng.  and  Min,  Jour,,  vol.  102,  1916,  pp.  247-253.  De 
scribes  sampling  of  ore,  p,  2*7,  and  gives  plan  of  breakinr  and  sampling 
plant. 

-57- 


7S8,   (a)  Rose,  T.K,  Metallurgy  of  bold,  6tti.  ea.,  1915,  p.  601. 
references  to  s^-plin^. 

729.  Ruhl,  Otto.   Rock-dust  sampler,  £n^.  and  Min»  Jour.,  vol.  99,  191-0,  p.  2Z£ 

Describes  apparatus  used,  by  the  Bureau  cf  Mines, 

730.  Rzehulka,  A.  samp.Un^  and  valuation  of  crcs.  Win,  Jcur,,  vol.  =>7,  1912, 

p.  668;  abstr.  f  r  bin  Kent  arils  wi^sche  Rundschau,  April  16,  1912.  Describes 

methods  of  s*u~plin£.  ore  in  mines  and  in  cai-ioaas. 

731.  Saint-Smith,  E,C,  Eij-,  Wonder  syndicate's  auriferous  lodes.  Queensland 

G-cv.  Min.  Jcurl,  vol.  16,  19  15,  pp.  211-215.  Rspc  rt  of  examination  of 
mire,  Describes  the  saiplin^  of  ore  in.  place. 

732.  t  _    »  Mount  Mascotte  cold  mine,  Australia.  Queensland  Gcv. 

Minn  Jour.,  vol.  16,  1915,  pp.  320-322.  Report  of  examination  .of  mine. 

733.  Sale,  A,J,  Drilling  and  analysis  of  copper  ores.  En£  .  ana  Min.  Jour.,  vol 

102,  1916,  pp,  87-90;  criticise.,  p.  231.  Discusses  errors  that  may  occur 
from  the  usual  methods  of  figuring  averages  f  TOIL  churn-drill  hole  samples 
and  the  application  of  the  lav  of  compensating  errors.'  Comments  en  HS- 
sayirij,  of  churn-drill  samples. 

733.  (a)  Sampling  and  Estimation  of  Ore  in  a  Mine,'  "by  T,A.  Rickard  and  26  other 

1st,  ed.  ,  3.90-i,  p.  222.  5th  impression,  1907.   Reprint  of  articles  in 
Eng,  and  Min.  Jour.,  vols.  75,  1903;  76,  1903;  77,  1904.   Reference  num 
bers  to  contributors  are  26  a;  40  a;  48:  90;  126;  128  a;  157;  167  a; 
167  b;  184;  336  a;  342  a;  428  a;  499  a;  505  a;  513;  5^6  a;  567  a;  653  a; 
658;  686  a;  705  a;  710  a;  773  a;  79<i  a;  822  a;  862  a. 

734.  Sampling,  definitions  cf  A.H.  Fay,  Bull.  95,  U.S.  Bureau  of  Mines,  1920, 

p.  589, 

735.  Schuette  ,  C.N,   Sampling  and  estimation  cf  quicksilver  ore,  Min.  ana  Sci  . 

Press,  vol.  122,  1921,  p.  293.   Ordinary  groove  samples  unsuitable  for 
cinnabar,  but  pan  samples  are  reliable. 

736.  Scientific  American.  Whjn  cca!  is  not  coal  until  it  is  analyzed,  f  el  .  116 

1917,  p.  555.   Describes  and  gives  view  of  a  irachine  for  pulverizing  coal 
and  taking  a  sample. 

737.  Scobey,  Jesse.   La  Luz  and  Los  An^.elss  mine,  Nicaragua.  Eng.  ?.nl  Min,  Jour 

vol.  110,  1920,  p.  6.   Sampling  a  peculiar  told,  ore  deposit. 

Ore  sampling  without  machinery.  Met.  and  Chem.  Enfc  .  ,  vol. 


11,  1913,  pp.  83-86.  Explains  and  illustrates  hand  sampling. 

739  •  ____  .   Sampling  mill  work.  Min.  and  Sci.  Press,  vol.  83,  1901, 

p.  119.  Discusses  methods  for  determining  the  per  cent  of  extraction  in 
which  samplers  are  usei, 

740,  Scott,  C.E,   Commercial  sampling  of  coal.  Mine's  and  Minerals,  vol.  33, 

1912-13,  pp.  199-201.  Discusses  precautions  necessary  to  secure  an  ac 
curate  sample. 


-58- 


41,  _____  .        Itfecnanic&l  coal  sampler.     Mines  and.  iviinerals,    vol.   3T 

1910-11,  p.   169-170.     Describes   and  giires  plan  of   sampler. 

42.  Semple,    C.C.     A  Steaa  Sample  -arier,     Eng,   and  Min.  Jour.,   vol.   ^1,    1211,   p. 

799.     Describes  a  stecua-J  acket   sample  drier. 


43.  _  _.     Dewatering  slime   sables,     Eng.  and  Win,   Jour.,   vol.    bl,    1911, 

p.   407.     Describes  a  small  wooden  filter  for  dewatering   slime   samples. 

44.  ___  _.     Samplin^  ores  containing  metallics.     EnL.   and  Miri.  Jour.,   vol. 

82,    1906,  p.  362,     Discusses  method. 

45.  Sen,   Janshi.     Valuing  placer  ground.     Min,   and  Sci.  Press,   vol.   122,    1921,   p. 

704.     Discusses  placing  of  drill-holes  and  calculating  results. 

86.     Separk,   E.A.     Some  aspects  of   the  analyzing  and  grading  of  iron  ores  of  the 
Gogebic  Range.     Trans.  Lake  Superior  Min,   Inst.,   vol.   10,    1904,  pp.   103- 
117;    discussion,   pp.    117-126.     Describes  methods  of   sailing,  used, 

47.  Seyler,   C.A.     Composition  and  analysis  of  coal.     Practical  Coal  Mining  .     1908, 

vol.    1,  pp.   72-73.     Discusses   sampling  coal  at  a  mine  or  in  trucks  for 
analysis. 

48.  Sewell,   F,W.     Mining   and  metallurgy  of   copper,    silver,    lea.i,    and   zinc.     Trans. 

Aust.   Inst.  M.   E.,   vol.   XII,    1907,   p,    108.     Flow-sheet   of  Wallaroo  and 
Moonta  mill   sh<~ws  position  of   sampler. 

49.  Sharpless,  F.F.     Mill-tests  v,   hand-  samp  lint.     Min.   and  Sci,   Press,   vol.    115, 

1917,   p.   638.     Discusses  methods. 

50.  Sharwood,  W.J.     A  note  on  sampling.     Jour.   Ini.   and  Eng.   Chem.  ,   vol.   4,    1912, 

pp.   227-229.     Discusses  possible  errors  in  sampling. 

51.  __  .     Measurement  of  pulp  and  tailin^.     Min.   Mag.,    vol.   1,    1909, 

pp.   226,   297;   vol.   2,    1910,   pp»  45-53.     Discusses  measurement  of  sand  in 
vats,    capacity  of  filter-presses.     Measurement  of  tonnage  crushed  in  mills 
and  flow  measurements* 

52.  Shaw,   A.M.     A  tailin^  sampling  device.     Eng.   and  Min.  Jour.,   vol.    101,    1916, 

p.   223.     Describes   and  illustrates  an  augur  for  sampling,  dry  tailings, 

53.  Shaw,   E.N.     Discrepancies  in  cyanidation.     Min.   and  Sci.  Press,   vol.    113, 

1916,   pp.   92-94.     Discusses  errors  in  sampling  and  in  assaying. 

54.  Shaw,    S.F.      Combination  method,  of  mine   sampling.     Min.    and  Sci.  Press,  vol. 

120,    1920,   p.   629.     Eight   specific  comparisons  of   mill  tests  with  hand 
samples. 

55.  __  .      Mine   sampling.      Mm.  Mag.,   vol.   5,    1911,   pp.   457-<*60,      Describes 

method  used  in  Costa  Rica  and   gives   stope  assay-map  of  gold  vein, 


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756.  Sheldon,  G.  L.  Salted  ^ines.  JEng.  ani  Min.  Jour.,  vol.  96,  1*13,  pp.  11] 

1114.  Describes  some  unusual  methods, 

757.  Shellshear,  W»  Flotation  of  gold-copper  ore  at  Mt.  Morgan,  Queensland, 

Proc.  Aust.  I.  M.  E.,  No.  22,  1918,  p.  58.  Sailing  1<±  sections  of  proc 
ucts  from  a  Wilfley  table. 

758.  Shepard,  F.  E.  Progress  in  mill  design.  Eng.  and  Min.  Jour.,  vol.  93, 

1912,  pp.  543-547,  Discusses  automatic  sampling. 

759.  Shimer,  P.  W.  Device  for  sampling  iron  andother  metals.  Trans,  Am.  Inst, 

Min.  Eng.  ,  vol.  30,  1901,  pp.  321-323 ,  Describes  ana  rives  figures 
showing  device  for  taking  samples  from  a  pile  of  pig-iron. 

760.  Shimmin,  J.  T.  Re-modeled  Arizona  Hercules  concentrator.  Eng.  and  Min. 

Jour.,  vol.  109,  1920,  p.  1116.  Flow-sheet  shows  position  of  3  samplers 
which  have  3  minutes  between  cuts, 

761.  Shiras,  Tom.  Bauxite  mining  in  Arkansas.  Eng,  and  Min.  Jour.,  vol.  107, 

1919,  p.  1074.  All  crebodies  are  sampled  as  soon  as  found, 

762.  Simmons,  Jesse.  'Trojan  milling  practice,  South  Dakota.  Min.  ana  Sci . 

Press,  vol.  Ill,  1915,  pp.  707-710.   Describes  method  in  automatic 
sampling  and  causes  of  error. 

763.  Simons,  E.  H,   The  accuracy  of  commercial  samples  and  assays.   Calif.  Joui 

of  Tech.,  vol.  2,  Nov.  1903,  pp.  8-14;  abstr,  in  Min.  and  Sci.  Press, 
vol.  88,  1904,  pp.  9  and  27,  Discusses  accuracy  attainable  in  everyday 
sampling, 

764.  Simpson,  G.  Calculation  of  extraction  in  cyaniiation.  Eng.  ana  Min.  Jour 

vol.  96,  1913,  p.  1230.  Discusses  accuracy  of  motor-discharge  sample 
and  crushing  in  cyanide  solution. 

765.  Simpson,  Duncan,  Sand  sampling  in  cyanide  works,   Trans.  Inst.  Min.  ana 

Met,,  vol,  16,  1906-07,  pp.  30-39;  discussion,  pp.  38-41.  Describes  ana 
discusses  eight  methods  used  at  the  New  Goch  Gold  Mine. 

766.  Sleeman,  H.  R.  Mill  tests  v.  hand  sampling.  Min.  ana  Sci.  Press,  vol.  11 

1919,  p,  415.  Discussion  of  Morten  Webber's  paper  in  same  Journal  in 
1918.  Also  vol.  119,  1919,  p.  143  and  p.  701,  bulk  v.  hand  samples;  ana 
in  vol.  115,  1917,  p.  563. 

767. .  Sampling  of  mines,  Min.  and  Sci.  Press,  vol.  12],,  1920, 

p.  405.  Sampling  errors. 

768.  Small,  F.  H.  Sampling  and  preparation  of  leather  for  analysts;  Am,  Leathe 

Chem.  Assoc.  Chem.  and  Met,  Eng.,  vol,  24,  1921,  p.  1095.  Methods  de 
scribed  are  applicable  for  sampling  leather  belting  deliveries  at  mines 
or  metallurgical  plants. 

768.   (a)  Smart,  R,  C.   Coal-dust  sampling  and  methods  adopted  in  practice, 

South  Wales  (England)  Inst.  of  Eng.  March  1921,  abstr.  in  Iron  and  Coal 
Trades  Review,  vol.  102,  1921,  p.  753.  Discussion  of  sampling  coal  aust 
in  mines,  with  sketches,  A  vacuum  cleaner  is  used  in  some  cases  to  cleai 
out  crevices. 

-60- 


Sruith,    C.A»     South-western  Pert  land,  cement  works;'    Enb.   aria  iviin.   ocar,,   vo±, 
96,    1913,   pp.   719-723,     Describes  hourly  saaiplinL  of  all   the  limestone 
crushed . 

Smith,  C.E". .    Some   sources  of  error  in  the  iodoinetric  determination  of   copper, 
Met.    arid  Chem.   Enb.,    vol.    14,    1916,   pp.   379-380.     Discusses  methods   to 
obtain  accurate   samples, 

71.     Smith,   E.A.     Note  on  the   sampling  of   geld  alloys.      Chemical  News,    vol.   93, 
1906,   pp.   225-226.     Discusses  scraping  and  cuttin6  samples  of  go la  alloys 
used  by  jewelers  and   goldsmiths. 

Sampling  and  assaying  the  precious  metals;    in  ores,    oullion, 


and  products.     Discusses  sampling  of   go  Id- silver  alloys.     1913,   <±60  pp 

73.      Smith,   Ef A.Coppelen.     Sampling  and  testing  the  Chuqui cairata  oreboay,     En6. 

and  Min,  Jour,,  vol.   97,    1914,   pp.    1015-1016.     Describes  testing  of  drill 
hole   samples  and   selection  of   large  samples  for  leaching  tests. 

(a)     Smith,   E,C.     Mine  sampling.     Eng.   ana  Min.   Jour.,   vol.   76,    1903,  p.   61*. 
Claimed  that  hand  sampling  does  not  serve  for  mines,   but  taking  out 
wheelbarrow  loads  ana  mill-tests  will.     Assaying  is  discreditea. 

Smith,   F.D.      Sampling  ores  for  assay.     Min.   and  Sci.   Press,    vol.   76,    1898, 
p.   •*92 ,     Discusses  inaccuracies  of  hand  sampling. 

775.  Suiith,   H  ,D.     Sapling  lcw-brade  ore  bodies.     Min.   and  Sci.   Press,    vol.    114, 

1917,   p.   293.     Discusses  practicability  of  runnint  mill  tests  en  lar^e 
boaies  of  }.ow- grade  Oolo.  ere. 

776.  Smith,  M.B.     Sampling  coal  deliveries.     Elect.   Ry.   Jour.,  vol.   42,   1913,   pp. 

1242-1243.     Compares  five  methods   of     R.O.M,    sampling. 

777.  Smith,   W.A.G.      Sampling  at  Great  Coban,   Australia.     Proc.  Aust,    Inst.  M.   £., 

No.   36,    1919;   p.    75;   abstr.   in  Min.   Mag.,   vol.    23,    1920,  p.  48.     Twelve 
nen,    in  six  sets  of  two  each,   used  a  7-lb,   hammer  and  chisel-pointed  steel 
to  sample  the  copper  ore.     Two  pounds  per  foot  was  taken.     The  paper  cov 
ered  sampling  in  all  classes. of  workings,    reduction  of   samples,    recording, 
and  plans. 

£i\v*     t  & 

778.  Siacct,   A.M.     Mathematics   of   copper  samplin-,.     Eng.   and  Min.   Jour,,   vol,   93, 

1912,  p.  1213,   Comments  on  article  by  Edward  K&ller, 

•f»   .  *••  <•  fV*99vQ    » "» V  ' 

Sampling  silver  ore,  Trans.  Can.  Min.  Inst.,  vol.  17,  1914,  pp. 


239-250.  Describes  methods  of  sampling  and  assaying  crude  silver  ore  at 
Cobalt,  Ontario. 

780.  Snelliru  ,  W.O.  and  Storm,  C.G.  Analysis  of  black  powder  and  dynamite.  Bull. 

51,  Bureau  of  Mines,  1913,  How  to  sample  sticks  of  dynamite  and  grains  of 
powder,  pp.  12  and  68. 

781.  Bohnlein,  M.G.F,  Amari  can  tin-slag  analysis,  En^,  ana  Min,  Jour.,  vol.  107, 

1919,  p.  576,   Steps  in  ass^yin^  a  sample  of  slat. 


-61- 


782.  Someriasir,   £.£«     Moisture  in  coke.     Mines  anc.  Minerals,   vol.   28,    1907-03, 

pp.  430-431.      Discusses  importance  of  proper  care  of   samples  for  an^ly-oi 

783.  Sorley,   D.     Notes  on  sauzplin^.     Jour.   Sec.   Chem.   Ind,,   vol.    13,    189-i,   pp. 

975-976;   Glasgow  City  Analysts1    Soc.    1893-94,  no.   4.     Gives  directions 
for  samplin^  iron  ore,  pyrite  residues,   basic  slat;,   Pi&  iron,  wood  pulp, 
and   sulphate  of  arnaionia  and  of  potash. 


784.  Spaulding,  E.P.     Mill-tests  v.  Hana-saqplin.  ,      Min,   and  Sci  .  Press;   vol.   1 

1917,   pp.   301-302.      Coui~ent  on  article  by  Albert  Burch. 

785.  Speakk   S.J.     Lead-zinc  deposits  at  Broken  Hill,   northern  Rhodesia.     Min. 

Mag.,  vol.  21,    1919,  p.   203.     Sauiplin^  peculiar  deposits  by  diamona-cLnl 

885.      (a)     Sperry,   E.A.     Invest  i^atioi  of  Feather  River  BldCk  sands,   Calif  ornii. 
Min.   and  Sci.  Frees,   vol,   105,    1912,  p.   624.     S-^d  bars  or  beaches  were 
saiopled  by  shoveling  or  puupin^,   and  samples  assayea  in  the  field. 


786.  Stadeler,  A.     Sr,mplinL-  of  ores  and  coal.     Stahl  and  Eisen,   vol,  38,    1918, 

pp.25  and  51.     Methods  used  in  Sweden  and  United  States. 

787.  Staley,   H.F.  and  Beecher,  M.F,     Practical  handling  of  IOWA  clays  with  appli 

cation  of  ceraoac  principles.     Iowa  State  College,   Bull.   43,   Oct.   10,    19] 
48  pp.     Describes  proper  way  to  sample  prospects,   pp.   6-7,    10. 

787.  (a)     Stander,  H.J,     Mill  and  smelter  raethods  of  samplim_.     Arizona  State 

Bureau  of  Mines',   Bull.   26,    1915-16,  p.   12.     Advice  to  producers  wfco   ship 
ore  to  custon  plants,    and  brief  notes  on  hanl  and  mechanical  sampling 
methods. 

788.  Stanton,  Horace.     Mine  samples  as  baggage.     Min.   and  Sci.  Press,   vol.   114, 

1917,  p.  433,     Argues  that  railroads   should  check  mine  samples  as  persons 
baggage. 

789.  Stead,   J.E,     Gas-  test  ing  and  saoplin^  apparatus.     Jour.   Soc.   Cheu*  Ind., 

vol.   8,    1889,   pp.    176-178.     Describes  method  and  apparatus  for  testing  ga 
from  fires  for  which  coal  or  coke  is   the  fuel. 

790«     __  •     New  form  of   &as   sampler,     Ircn  and  Steel  Journal,   no.   1,    1884, 
PP.   187-189.     Describes  device  for  sailing  blast  furnace  bases. 

791.  Steel,   Donald.     Valuin^  placer  ground.     Min,  and  Sci.  Press,   vol.   109,   191* 

p.  845.     Drill-hole  sample     calculations. 

792.  Steele,   J.H.     A  model  tramway  and  sampler.     En^.   and  Min.  Jour.,  vol.   72, 

1901,  pp.  596-597.     Describes   mill  and  methods  of  saugplin^  lead-  silver  or 
at  Park  City,   Utah. 

793.  Steinem,    C.     A  solution  meter.     Eng.  and  Min.  Jour.,   vol.   92,    1911,  p.   675. 

Describes  a  oieter  to  measure   solutions  and  .Uso  in  some  case  tailings  and 

concentrates. 


-62- 


794.  Sterner-Rainer,  Roland.   Mercury  .production  at  Alaaden,  Spain,  Oster^einh. 
Zeit.  fur  Ber^urrl  Huttsn,  vol.  62,  .1914,  p.  529.  Abstr.  in  Chem.  and  //'.it, 
Ena,.,  vol.  20,  1919,  p.  32.   Su^plin^  cinnabar. 


794.  (a)  Stevens,  Blarney.  Method  of  least  squares  as  applied.  to  mine 

En^.  and  Min.  Jour.,  vol.  76,  1903,  p.  265.  Calculations  cf  ore  reserves 
based  on  s.vopling  . 


795.  Stewart,  J.B.  Presenting  assay  results  by  ^rctphic  ii-ethod.  Min.  and  Sci. 

Press,  vol.  '104,  1912,  pp.  654-657.  Gives  practical  advice  on  tne  ior.ii  of 
reports  of  uine  valuation. 

796,  Sticht,  Robert  C.  Minin...  ana  salting  at  Mount  Lyell,  Tasmania.  Min.  Ind.  , 

vol,  26,  1907,  pp.  385-442.  Describes  sanplin^  works  and  methods,  p.  428. 


797.  Stockhausen,  P.  Liquation  in  cyanide  bars.  Proc.  Chei^.  Met.  and  Min,  Sec. 
of  S.  Africa,  vol.  2,  1697,  pp.  46-50,  discussion  pp.  50-52.  Compares 
dip,  drilling  and  cutting  sarrples  and  advocates  dip. 

797.  (a)  Storm,  C.G.  Analysis  of  permissible  explosives.  U.S.  Bureau  of  Mines 

Bull.  96,  1916,  On  p.  12  is  described  the  method  of  sampling  aynaxLite 
cartridges. 

798.  Stores,  W.H.  Difficult  mine  saaplin^.  Min.  rud  Sci.  Press,  vol.  J.14,  1S17, 

p.  361.  In  sampling  soft  and  hard  ore  the  former  may  salt  the  latter. 

799.  _  .  Errors  in  mine  samplin^.  Min.  and  Sci.  Press,  vol.  103,  1911, 

p.  112,  Comments  on  article  by  Morton  Webber, 

800.'  Stowell,  E,G.  and  Coghill,  W.H.  Flotation  of  low-grade  <}uick-silver  ore. 

Min.  and  Sci.  Press,  vol.  120,  1920,  p.  117.  Preparing  samples  of  cinna 
bar  for  assay. 

801.  Strauss,  L.W.  Chilean  nitrate  industry.  Min.  and  Sci.  Press,  vol.  108, 

1914,  pp.  972  and  1014.  Sampling  caliche  deposits  and  finished  product. 

802.  Stromeyer,  C.E.  Coal  sampling.  Coll.  guard.,  vol.  102,  1911,  pp.  112s- 

1126.  Discusses  relation  of  size  of  .sample  to  lindt  of  error, 

803.  Stuckenberg,  W.D.  Triplicate  sampling  of  "coal.  Power,  vol.  *4,  1916,  pp. 

612-614.  Discusses  accuracy  of  triplicate  sampler  and  gives  proper 
methods  of  fillint  cans  for  sampling. 

804.  Swain,  P.W.  Commercial  sampling  and  analysis  of  producer'  gas.  Trans,  Am. 

Soc.  Mech.  Eng,,  vol.  38,  1916,  pp.  961-977.  Describes  methods  and  ap 
paratus,  pp.  963-968. 

805.  Swart,  W.G.  Marking  samples.  Ent,.  and  Min,  Jour.,  vol.  79,  1905,  p.  814. 

Suggests  cutting  sample  nuober  on  small  pieces  of  wood  and  enclosing  with 
the  sample. 

805.  (a)  Taggart,  A..F.  Boring.  Section  9  of  Peele's  Mining  Engineers1  Hand 
book,  1918,  pp.  307-376.  Details  of  all  kinds  of  drilling  ana  getting 
samples. 

-63- 


806,     Taylor,   J.E.     Mechanical  ore   sampler.     &it.  .   ana  Mi  n.  Jour.,   vol.    100,    1915, 
p.   2/29.     Describes   a  dsvice  for  daily  ssv.plini.    of   s^-all   au'iounts  of   ore. 


307.     Taylor,    L,H.,   jr.      Salted  drill   samples  of  Ellipic  Mine,     Enfe.  and  Min. 
Jour.,    vol.   96,    1913,   pp,   269-270.      Describes   tests   tc  discover 


809.     Taylor,   V/.W,      Sampling   certain  ores.     ETU;  .   and  Min.  Jour.,   vol.   63,    1897,   p. 
160.     Describes  .r^thod  used  in  sjuq>lini.   jigged  iron  ore. 

809.     Text-bock  of  Rand  Metallurtical  Practice.      1912,   A  vols.     Treatises  by 

various  nlnin&  authorities;   discusses   "S?ui£lint,,    ^rading  and  assays",   vol. 
1,   pp.   79-61.      "Sampling,"  vol.    1,   pp.    168-170~   ^91-29^,    33<*. 


810.     Textcr,   Oscar.      Standard  -etncds  of   saiiplin^  cargoes  of   iron  ore.     Proc. 

Lake  Superior  tain.   Inst.  ,  ycl.   13,    1906,   pp.   231-2-j>3.     Describes  ir.ethcas 


311.     The  Tinies,   London,   EnGineerin^  Suppleiient*     Fuel  s  u-plin^»     Jan.   26,    1917. 


812.     Thesis,   A.C.     Ore  ssu^plin  ....     Trans.   Aust.   Inst.  Min.  En..,   vol.   10,    1902,   p. 
276;   Australian  Min.   Stjjidr.rd,   vol.   3c,  ISO*,   p.   265.     Discusses  princi 
ples  and   suitable  tools. 

812.  (a)     Thomas,   Kirby.      Test  drilling  on  the  Me  sab  i   iron  ran^e.     Sn^  .   and  Min. 

jour.,  vol.   75,    1903,   p.   896.     Diamond-drilling  ,    sa^pl  in&  the  sludge, 
placing  holes. 

813.  Thompson,   H.     Notes  on  reduction  of  ^old  ores.     Min.    and  Sci  .  Press,   vol.   25 

1872,  p,   274.      Discusses   sampling  from  stamps  and 


814.  Thompson,   R.W.     Notes  on  sauplint   as  practiced  on  the  R«nd.      C^n.   Min.   Jour. 

vol.  32,    1911,  pp.   307-308.     Describes  rsethods  of   sacplin^  gold  ore. 

815.  Thoir^on,   F.A.     Metallics  in  sampling  work.     West.   Chem.   and  Met.,  vol.   3, 

1907,   pp.    16-19.      Abstr.   in  Eng.    and  Min,   Jour,,   vol.   83,.  1907,   p.    645; 
and  Jcur.   Chen.  Met.   and  Min,   Soc,   S.   Africa,   vol.    7,    1906-07,   p.   420. 
Shows  difficulties  of   sailing  ore  containing  ^tallies. 

616.     Thomson,  H.N.    and  Sicka,   L.T.      Tooele  plant  of  International  Smelt  ing  and 
Refining  Co,     Trans,   Am.   Inst.  Min.   Eng.,   vol.   46,    1913,   pp.    940-955; 
abst,    in  Min.   and  Eng.  World,   vol.  39,    1913,   pp.    291-293.      Describes 
sampling  mill,  p,   941. 

817.  Thome,   W.E.      Churn-drill  saiLplin^.     Min.  and  Sci.   Press,   vol.   98,    1909,    pp. 

358-359;    consent,   p.   549,      Discusses  precautions  to  prevent   errors  in  the 
samples;   drill   sr.mples   are  unreliable  for  indicating  gold,    ?.ncL  should  be 
checked  by  shafts. 

818.  Thornhill,  E.B.     V*lue  of  dredging  ground.     Min.   and  Sci,   Press,    vol.   109, 

1914,   p.    105.     Placing  of  drill-holes  for   sampling,  and  calculations. 

819.  Thornton,  Edward.      Sampling  low-grade  orebodies.     Min,   and  Sci.  Press,   vol. 

!!<*,    1917,    pp.   469-470.     Describes  sampling  with  a  stoper-drill. 


-64- 


.      Thunuand,    F.   LeRoi ,     The   Swansea  uill,    Arizona.      Min.   and  Sci.   Prjss,    vol. 
120,    1920,  p.    606.      Sampling   copper  tailings, 

21.  Tracy,  L.D,      Mine-w,  .ter  neutralization  plant    at  Calu.^t  uine,   P*.     Min,   d,r.d 

Met., 'No,    161,    1920.    p.   29.      gaudies   of  water   come  from  boreholes, 

,  Tracer,  E-A.  Laboratory  metncd  for  examination  of  well  cuttings,  Econ. 
£eol,,  vol  XV,  No.  2,  1920,  p>  170.  Samplin-  drill  cuttings  from  oil- 
wells. 

22.  (a)    :Treadv.rell,    J.C.      Ore  developed.     En^ .   and  Mm.  Jour.,   vol.   75,    1903, 

p.   66C.     Rich  pockets  in  ore- shoots  sometimes  not   revealed  by  sampling. 

23.  Trewart ha- James,   V  .H.     Taylor's  pulp  sampler.     Trans.   Inst.  Min.   and  Met,, 

vol.   25,    1915-167  pp.    185-189;   discussion,   pp.    lb9-225.     Describes   sampler 
used  in  Ej.st  Pod  Tin  Alines  in  Cornwall. 

:~.     TruscoU,    S.J.-    .The  V/itv;atersrand  fccld  fields.  '1902,    517  pp.     Sampling  and 
ore  valuation,    Chd.pt er  XIV,   pp.   304-334.'     Stope  plans,    Chap.   XV,   p.   364. 

25.  Tupper,  C.A.  Copper  production  of  Great  Ccb«r,  Ltd.  Min<  and  -Rife.  V/orla, 
vol.  40,  '191-,,  pp.  363-366,  Describes  methods  of  sampling  copper  ore  by 
machine. 


26.  Turnbull,  Thorns.  Notes  en  samplinV  fcr  Lcld.  Trans.  A^st .  Inst,  Min. 

Enb.,  vol,  3,  1895,  pp.  71-74.  Discusses  sampling  alluvial  gold  ana 
quartz  ore  and  the  merits  of  dish  tests, 

27.  Tweedy,  R,F,  Saiaplin^  large  low-grade  orebodies.  Efa£.  and  Min.  Jour.,  vol. 

104,  1917,  p,  522.  "Discuss  possibility  of  too  low  a  valuation  of  ore  in 
a  mine. 

28.  Tyrzell,  F.G.  Sar-.plin.  s,nall  lots.  Min,  and  Sci.  Press,  vol.  114,  1917, 

p.  251.  Defends  honesty  of  sirelter  samplin^. 

J29.  Tyssowski,  John.  The  new  International  Smeltery  at  Tooele,  Utah.  En^,  and 
Min.  Jour.,  vol.  89,  1910,  pp.  865-867.  Describes  sample  mill  of  the 
Bruntcn  type. 

330.  Vail,  H.H.  New -smelting  works  of  Arizona  Copper  Co,  -I.  Eng.  and  Min. 
Jour.,  vol.  97,  1914,  pp.  1279-1283,  Describes  sampling  mills. 

1. .  The  El  Paso  smelting  works.  En^.  and  Min.  Jour.,  vol.  98,  1914, 


pp.  465-68.  Describes  s?mplin£,  mills,  pp. '466-467. 

332.  Van  Zwaluwenber^.,  A.  Principles  of  ore  sampling.  Mines  and  Methods,  vol.  1, 

1909,  pp.  69-71,  Discusses  theory  and  machinery. 

333.  . ,  Sampling  by  machine.  En^.  and  Min.  Jour.,  vol,  87, 

*  1909,  p.  420.  Discusses  article  by'J.A.  Church,  vol.  86,  1908,  p.  113. 

334.  Verschoyle,  W,D.  An  emergency  sampler.  En^,.  and  Min.  Jour.,  vol.  80,  S905, 

pp.  485-486.  Describes  a  cheap • and  accurate  device  for  small  samples, 
easily  constructed  and  resembling  the  Jones  sailer . 

-65- 


835,  Vogelstein,  Ludwig,   Sampling  of  spelter.  En^.  and  Min.  Jour.,  vol.  102, 
1916,  p.  432.  Pleads  for  binding  regulations  governing  sampling  and 
testing,  coniLents  on  editorial  on  the  subject,  p.  108. 

835.  (a)  von  Bernewitz,  M,W.   Customs  treatment  at  Kalgoorlie,  Western  Australia 

Min.  and  Eng.  Review,  vol.  VI,  1912,  p.  229.  Sampling  oxide  and  sulpho- 
telluride  ores. 

836.  __^ .  Filter-pressing.  Trans.  Aust,  I.  M,  E. ,  vol.  15 

(1),  1911,  p.  153.  Samp line  ore  residue  in  filter-frames. 

836.   (a) .  MetallurLy  of  California  Mother  lode.  Min.  and 

Sci.  Press,  vol,  108,  1914,  p.  65,  Sailing  tailing  at  South  Eureka  mill 

836.  (b) .  Present  metallurgical  practice  at  Kalgoorlie 

Western  Australia.  Min.  and  Eng.  Review,  vol.  V,  1911,  pp.  13-19.  Hew 
12  different  plants  sample  140,000  tons  of  ore  and  residue  monthly. 

837.  von  Bernewitz,  M.W.  and  Osborn,  H.S,  Prospectors  Field-Book  and  Guide. 

9th  edition,  1920.  Theory  and  practice  of  sampling  discussed, 

838.  Wagner,  W.H.  Mine  sampling.  Min.  and  Sci ,  Press,  vol,  120,  1920,  p.  451, 

Practice  at  North  Butte  mine,  Montana.  Editorial  comment  on  p.  439. 

839.  Wallace,  D.  Tricks  in  ore  buying.  Eng.  and  Min.  Jour.,  vol.  82,  1906,  p. 

1079  and  1128.  Describes  frauds  chiefly  in  Mexico. 

840.  Walton,  v;.L.  Calculation  of  recovery  in  concentration.  EnL.  and  Min.  Jour 

vol.  90,  1910,  p.  541.  Criticises  methods  proposed  by  (F.J,  Hoover  and 
R.S.  Handy. 

841.  Ward,  W.F,  Preliminary  sampling  of  placer  t. round.  Eng.  and  Min.  Jour,, 

vol,  95,  1913,  pp.  702-704.  Describes  drilling  outfit  and  its  use. 

842.  Warwick,  A,W.  Hand  sampling  in  small  mills.  West  Chem.  and  Met.,  vol.  1, 

1905,  p.  138;  Min.  and  Sci.  Press,  vol.  91,  1905,  pp.  274-275.  Argues  foi 
accuracy  in  sampling,  and  describes  methods  of  hand  sampling,, 

843.  .  Notes  on  sampling.   1903,  41  pp. 

844.  .  Ore  in  sibht.  Mining  fieporter.  Vol.  46,  1902,  pp.  416,  43d, 

460,  507;  vol.  47,  1903,  pp,  28,  54.  Discusses  principles  and  method  of 
valuing  ore  in  place. 

845.  .   Sampling  of  mine  and  mill  dumps.  Mining  Reporter,  vol.  47, 

June  11,  1903,  p.  540.  Discusses  difficulties  in  sampling. 

846.  .   Sampling  mill  dumps  or  tailings  ponds.  Mining  Reporter,  vol, 

50,  July  21,  1904,  p.  59.  Describes  the  sampling  of  a  mill  dump, 

847.  Waterhcuse,  L.V.  Flotation  at  Mt.  Lyell,  Tasmania.  Froc,  Aust.  I.  M.  E. , 

No.  38,  1920,  p.  117.  Abstr.  Min.  and  Sci.  Press,  123,  1921,  p.  87. 
Sampling  copper  ore  and  concentrates,  and  drawings  of  apparatus. 

-66- 


;48  . ^ .   Flotation  practice  at  Mt .  Lyell,  Tasmania,  Min. 

and  Sci.  Press,  vcl.  123,  1921,  p.  87,   Sacplini.  coarse  ore,  concent r?r:e, 
tailing,  and  pulp  in  the  copper  mill, 

49,  Watson,  E.G.  Prospecting,.  Min,  a  .id  Sci,  Press,  vol.  122,  1921,  p.  7*2. 
Sampling  surface  dirt  and  costeans  for  gold. 

$50,  Watt,  A. P.  Concentration  Practice  in  Southeast  Missouri.  Trans.  Am.  Inst. 
Min,  Eng.,  vol.  57,  1917,  pp.  322-411.  Criticizes  sampling  methods  at 
mills,  p.  400. 

}51.  Watts,  A.S.  Fieldspars  of  New  England  and  North  Appalachian  states.  U.S. 
Bur.  Mines,  Bull.  92,  1916,  131  pp.   Gives  results  of  examination  of 
deposits  and  tests  of  sample's. 

352,  Watts,  W.L.  Ex-jrdnation  of  prospects  and  mines.  Min.  ana  Oil  Bull,,  vol. 

1-2,  Feb.  1915,  p.  55.  Discusses  duties  of  examining  engineer,  principles 
of  sampling,  and  methods  of  estij.-'ting  values. 

352.  (a)  Weather bee,  D'Arcy.  Dredfcinb  for  gold  in  California.  1st.  ea,,  1907, 

p.  217,  •  Appendix  of  30  pages  consists  of  contributions  by  J.H.  Curie, 
T.A.  Rickard,  G.L.  Hola.es,  and  C.W.  Purin&ton.  Prospecting,  "drilling  and 
sampling  are  fully  covered. 

353.  Webber,  Morton.  Combination  method  of  cine  sampling.  Min.  and  Sci.  Press, 

vol.  120,  1920,  p.  303.  Mill  tests  as  a  check  on  moil  sampling.  Editor 
ial  comnent  in  same  issue,  p,  203. 

354, .  Detection  of  salting.  Min.  and  Sci.  Press,  vol.  11$,  1919, 

p.  673.  How  salting  cay  be  done,  and  how  to  circumvent  it. 

355. .  Latent  errors  in  mine  sampling.  Min.  Mag,,  vol.  12,  1915, 

pp.  99-101.  Discusses  causes  and  means  of  avoiding,  errors, 

356.  .  Mill-tests  v.  hand  -  samp  1  i  n£  ,  Min,  and  Sci.  Press,  vol.  115, 

1917,  pp.  125-129.  Describes  three  methods  used  in  sampling  three  dif 
ferent  kinds  of  mines. 

857.  4  Mill  tests  v.  hand  sampling.  Min,  and  Sci.  "Press,  vol. 

118,  1919,  p.  417.  Discussion  of  H.R,  Sleeman  in  same  issue. 

858.  ' .  Sampling  an  erratic  ore  body.  Min.  and  Sci.  Press,  vol. 

114,  1917,  pp.  792-793.  Criticizes  article  by  L.A.  Parsons. 

859.  ,  Sampling  of  mines.  Min,  and  Sci.  Press,  vol.  113,  1916, 

p,  846.  Describes  method  in  whi  di  mixing  is  timed  so  as  to  mix  e^ch 
sample  thoroughly. 

860. .  Systematizing  large  mine  examinations.  Min,  ana  Sci.  Press, 

vol.  121,  1920,  p.  233.  First  study  the  mine,  then  whitewash  the  places 
to  be  sampled  by  the  sampling  crew.   Checking  assayers  by  false  numbers 
on  similar  samples.  Editorial  comment  on  p,  223. 


-67- 


861,  ____   _,  Unavoidable  errcrs  in  sampling.  Min.  and.  Sci  .  Pres 
vol.  102,  1911,  p7  6<*6,  comments,  p.  636;  vol.  103,  pp.  51,  11^.   Die- 
cusses  the  causes  of  discrepancies  between  mill  yield  and  average, 
indicated  by 


862.  __  ___.   Valuin_  partly  exhausted  mines.  Min,  and  Sci. 

Press,  vol»  122,  1921,  pp,  385  and  489.  Although  seldom  mentioned, 
sampling  is  inferred  throughout  these  two  articles, 

662.   (a)  Weed,  W.H.  Mine  sampling.  En^,  and  Min,  Jour.,  vol,  76,  1903,  p.  80. 
Assistance  in  sampling  condition  of  face  tc  be  sampled,  catchin^.  sample 
quartering  marking,  where  to  s£.mple,  valuing  a  block  of  ore,  dressing 
and  salting  mines. 

863.  Weeks,  F.D.  The  Salida  Smelter,  Colorado.  Trans.  As.  Inst.  Min.  £nt.,  vol 

52,  1916,  p.  711-715.  Describes  methods  of  sju.-plin^  lea£  bullion. 


664.  Weigall,  A.H.  and  Mitchell  -  Roberts,  J.F.  Operations  on  the  Suan  Ccncessi; 
Korea.  Min.  ana  Sci.  Press,  vol,  119,  1919,  pp  ,  601  ana  609.  San:plinb 
underground  and  in  the 


864.   (a)  Westervelt,  W.Y.  Mine  examinations,  valuations,  ana  reports.  Section 
25  of  Peelers  Mining  Engineers'  Hand-book",  1^18;  also  numerous  briefs 
on  sampling  throughout  the  book. 

365.  Wet  hey,  A.H,  Smelting  plant  of  the  Butte  Reduction  Works.  Eng.  ana  Min. 
Jour.,  vol.  66,  1909,  pp,  1153-1155.  Gives  diagram  of  crusher-house 
sampler. 

b66.  Whitaker,  O.R.  Report  of  Smelter  and  Ore  Investigation  Committee,  Colorado, 
.917.  Abstr.  in  Eng.  and  Min.  Jour.,  vol.  107,  1919,  p.  66.   The  report 
of  172  pages  contains  much  on  methods  of  sampling,  assaying  and  settle 
ment  of  ore  shipments. 

667.  White,  E.E.  Surveying  and  Sampling  diamond  drill  holes,  Trans.  Am.  Inst. 

Min,  Eng,,  vol.  44,  1912,  pp.  69-90;  abstr.  EnL.  and  Min.  Jour.,  vol.  92, 
1911,  pp.  676-677,  Describes  saving  of  samples  of  sludge  from  diamond 
drill  holes  in  the  L?.ke  Superior  iron  districts. 

868.  White,  Franklin.  Errors  in  sampling  and  assaying  ores  due  to  the  presence 

of  coarse  gold.   Trans.  Inst.  Min.  and  Met.,  vol.  22,  1912-13,  pp.  620- 
640;  discussion,  pp.  640-660;  Min.  ana  Enr  .  World,  vol.  38,  1913,  pp. 
1043-1047, 

869.  White,  L.C.  No.  1  concentrator  of  Mountain  Copper  60.,  Calif.  Min.  and 

Sci.  Press,  vol.-  119,  1919,  p.  331.  Flow-sheet  shews  position  of  tailin, 
sampler. 

670.  Whitney,  J.D.   Ore  in  si.ht.   Min.  and  Sci.  Press,  vol.  102,  1911,  p.  596. 
Discusses  erroneous  mine  valuation. 

871.  Wiard,  E.S.  Ore  dressing  in  the  Coeur  d»Alenes.  Enb,  and  Min.  Jcur.,  vol. 
by,  1910,  pp.  875-o77.  Describes  crude  methods  used,  the  Haul  tain  sample 
or  wet  sands,  assay  methods,  and  fire-assay  for  low-grade  ore. 

-68- 


872.     Wiley,  W,j*.     Sampling  and  preparation  of  raw  material  for  analysis  at 

South  Works,   Illinois  Steel  Co.     Jour.   Inci.  &:E,Chem.,   vol,   o,    1911,  pp. 
103-108.     Describes  methods  and  gives  plans  of  sampling  house. 

673.     Williams,   Albert,   jr.     Metal  mining.     Coll,  Eng  .   and  Met.   Miner,   vol.   15, 

1894,   pp.   1-3.     Describes  methods  of   obtaining  and  preparing  ore  samples. 


874.     __  .A  .Popiilar  fallacies  regarding  previous-metal  ore 

its.     1884,   pp.  257-271;   4th  annual  report  of  the  U.S.  Geol.   Surv.,    1384, 
pp.   253-271.     Gives  advice  for  mine 


875.  _  __  „     Public  sampling  works.     Eng,  Mag,.,   vol.  3,    1892,  pp. 

34-43.     Gives  procedure  of    sampling  in  public  works. 

876.  v/illiams,   D.J.     Sampling  the  Main  Reef  series.     Proc.  Cheu.  and  Met.  Soc.  S. 

Africa,   vol.  3,    1902-03,  pp.   160-171;  Min.  and  Sci.  Press,   vol.  86,    1903, 
pp.    165-166;  discussion  171-177.     Discusses  problems  of  underground  en 
gineering  and  gives  sectional  drawing  of  reefs. 

877.  Williams,   L.B.     Importance  cf  efficient  mine  sampling.     Monthly  Jour,   Cham. 

of  Mines,  W.   Australia,   vol.   —  ~,     Nov.  30,   1914,  p.  304. 

878.  V/illien,   L.J.     Coal  gas  candlepcrwer.     Am.  Gas  Light  Jour,,   vol.   102,    1S15, 

pp»   219-220,  discussion,  p.   317.     Describes  methods  of   sampling  gas  in 
order  to  test   it  for  candle  powers, 

.     7/illis,    Charles  F,     Selling  a  prospect.     Ariz.  Win.  Jour.,   vol.  •*,   Aug.   1920, 
p»  23.     Importance  of  correct  sampling  of  prospects. 

660.     Wilson,  J.B.     Mount  Morgan,   Australia,   mine  records  and  assay  plans,     Eng. 
and  Min,  Jour.,   vol.   89,  1910,  p.  710.     Describes  methods  used. 

860*     (a)     Winchell,  N.H.   and  H.V.       Iron  ores  of  Minnesota.     Geol.   and  Mat.  Historj 
Survey  of  Mines,   Bull,   6,    1891,  p.  <*29.     Sampling  of  tne  ores  pp.   186-188. 

681.     ?/ise,   O.B.     Duty  and  sampling  of  lead  ores.     Mining,   vol.   1,    1896,   pp.   298- 
301;   abstr.   in  Min.   and  Sci.  Press,   vol.  73,    1896,  p.   132.     Consents  on 
act  of  Congress  on  the   sampling  of  lead-silver  ore  from  Canada. 

381.     (a)     Woakes,   E.R.     Highland  ore  dressing  mill,  B.C.     Ent.   and  Min.  Jour,,   vol. 
74,    1902,  p.  852.     Lead-silver  ore  and  tailing  is  sampled  every  15  minutes. 

882,  Wolcott,   C,E.     Sampling  ore  in  the  Cripple  Creek  District.     Mining  Reporter, 

vol.   50,   Sept.  8,    1904,  pp.  241-3*4.     Gives  methods  of  sampling  with  dia 
grams  of  schemes  for  several  companies. 

883.  V/olf,   A.G,     Flow-sheet   conventions.     Ewg.  and  Min.  Jour.,  vol.   109,    1920,   p. 

380.     Symbol  for  sample-cutter  in  flow-sheets. 

844.     _  .     Sampling   nine  floors.     Eng.     nd  Min,  Jour.,   vol.   104,    1917,  pp. 
1111-1112.     Discusses  difficulties  and  water  control  in  floor  sampling. 


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685.  Wood,  G.W.  The  Rochester  mill.   Nevada,  Win.  ana  Sci  .  Press,  vol.  Ill, 
1915,  pp,  317-320.   Describes  takinj-  of  sa-ples  of  silver  ore. 

886.  Wood,  HdE.  Separating  metallics  from  Pacific  Coast  sands.  Eng.  and  Min. 
Jour.,  vol.  109,  1920,  p.  398.   In  sampling  several  million  tons  of 
beach  sands,  14  ft.  holes  were  drilled,  and  200  samples,  et.ch  200  Ibs. 
were  taken. 

387.  '.Yocd,  H.R.  Notes  on  samplin^.   Colo.  Sch.  Mines  Quart.,  vol.  13,  1891-92, 
pp.  364-568;  En:-,  and  Mi  n.  Jour.,  vol.  54,  1892,  p.  156;  Jour.  Soc.  Chem. 
Ind.,  vol.  12,  1693,  p.  547.  Discusses  briefly  vein  and  mine  sampling, 
duiup  sampling,  and  slat,  sampling. 

888.  Wood,  J.E.  A  method  of  collecting  gold  from  pannings.  Trans.  Inst.  Min. 
and  Met.,  vol.  20,  Oct.,  1910-11,  p.  <±4.  Describes  wrapping  samples  of 
bold  in  lead  foil  for  convenience  and  protection. 

o39.  Wocdbrid  e,  D.E.  L?.  Cananea  mining  camp.  Eng.  and  Mm.  Jour.,  vol.  82, 
1906,  pp.  623-62.  Discusses  method  of  sampling  ore  with  an  autoiDatic 
sampler  of  the  revolving  barrel  type. 

Mesabi  iron  ore  ranga.  Ei%.  and  Min.  Jour.,  vol.  79, 


1905,  pp.  466-^69.   Describes  methods  of  sampling  ore  in  place. 

891.  Woodbridte,  T.R.  Ore  sampling  conditions  in  the  West.  U.S.  Bur.  Mines 

Tech.  Paper  86,  1916,  96  pp.  Discusses  conditions  affecting  ore  sampling 
and  the  methods  used. 

391-   (a)  _  .   Ore  samplinb.  Section  29,  of  Peele's  Mining  Engineers' 
Handbook;.  1918.  Notes  on  mill  and  l?.t>.  samplers,  with  flow-sheets  ana 
costs. 

832.  __  _  t      Sampling  by  machine.  Enj.  .  and  Min.  Jour,,  vol.  86,  1908, 
p.  917;  vol.  87,  1909,  pp.  269-272.  Discussion  of  article  by  J.A.  Churcn. 
Vol.  86,  1908,  p.  113. 

893.  Woodman,  J.E.  Coal  sampling.  Can.  Min.  Jour.,  vol.  28,  1907,  p.  112. 

Discusses  principles. 

894.  Worcester,  S.A.   Co  lour  n-Aj^.x  mill,  Victor,  Colorado.  Em,.,  and  Min.  Jour., 

vol.  93,  1912,  p.  753.  Describes  Scunpling  methods. 

89-i.   (a)  Wraight,  E.A,  British-  America  Nickel  Corporation.  Min.  Jour.,  vol. 

134,  1921,  p.  526.  Nickel  ore  nt  the  main  shaft  is  sampled  by  a  traveling 
car  which  takes  a  sample  from  the  ends  of  7  sorting  belts. 

895.  Wraith,  Williara,  Sampling  anode-copper  with  special  reference  to  silver- 

content,  Trans.  Am,  Inst.  Min.  Eng.  ,  vol.  41,  1910,  pp.  318-323;  dis 
cussion,  vol.  42,  1911,  pp.  905-908.  Give  smelter,  refinery,  and  ladle- 
shot  methods  of  sampling  and  comments  on  them. 


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896,     Wright,    C.A.     lining  and  milling  lead-zinc  ores  in  the  Mis  sour  i-IIancas- 
Oklahoma  ditrict.      Bureau  of  Mines  Bull.    154,    1918.      Importance  of 
sampling  emaasized,   p.    123. 

:    697.     _  .     aninb  and  milling  lead-zinc  ores  in  Wisconsin.     Bureau  of 
Mines  Tech.  ^aper  95,    1915.     Methods  of  prospecting  and  sampling  ere 
foi  ven. 

v   693.     Wright,   L.T,   Element  of   chance  in  sampling  of  ores.     Min.  Mag.,   vol.  3, 
1910,   pp.  33-358.     Discusses  application  of  mathematics  to  determine 
errors  of   cance  in  sampling,    especially  Vezin's  principles  of   safe 
weights. 

:  399.  Wright,  .  S.B.  Smelting  and  refining  of  Cobalt  silver  ore.  Eng.  and  Min. 
Jour.,  vol.  107,  1919,  p.  263.  The  silver  -  cobalt  -  arsenic  -  nickel 
ores  and  cc.centrates  are  first  crushed  to  20  mest,  and  cut  by  Snyder 
machines. 

900.  Wybergh,   Wilted.     Estimating  and  sampling  ore  reserves  as  practiced  on  the 

V/itwatersrad.  Trans.  Inst,  Min.  and  Met.,  vol.  4,  1896-97,  pp.  261-27<±. 
Gives  detals  and  data  on  sampling  both  undeveloped  mines  and  ore  already 
blocked  out 

901.  Yancey,   H.F.    nd  Fraser,   Thomas.     Sulphur  in  coal  beds.     Bull.  Uni  .  of 

Illinois,    121.     Abstr.   in  Jour.   Ind.   and  Eng.   Chem.,    vol.    13,    1921,  p. 
35.      Sempl:^  coal   seams 

.     902.     Young,   G.J.      ontrol  of   ore-dressing  operations.     Enb.   and  Min.  Jour.,   vol. 
107,   1919,    .   907.     systematic  sampling  at  each  stage  is  hithly  important 

903.     _  ___.     .laments  of  mining  .     1916,   628  pp.     Discusses  mine  sampling, 
pp.   584-60. 

_  .     .nyder  ore  sampler.     Eng.   and  Min.  Jour.,   vol.   70,    1900,   p. 


905.  _  _  _.    flection  of  a  method  for  ore  treatment.     Met.   and  6hem.  Eng., 

vol.    15,    116,   pp.   297-299.     Gives  principles  of   sampling, 

906.  Young,   L.E.   Bibliography  of  mining.     Min.   Ind.,   vol.   20,    1911,     Gives 

bibliograpy  for  1911  on  sampling  and  valuation,   pp.   775-776. 


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PA^ETTS. 

Allen,  Charles.   Automatic  ore  and.  puJp  sampler.  U.S.  patent  754,912,  March  Lv, 
190 1.   A  spout  cscilXates  through  tne  ore  stream  collecting  a  sample. 

Andrus,  Gr.S.   Samp?.ing  apparatus.  U.S.  patent  260,994,  July  10,  1283. 

Backus,  G.S.   Sampler,   U.S.  pa'  ent  3,238  058.  August  21,  1917.   Cuts  out  J  of 
tho  renter 3  ai  by  tne  cone  and  chute  method.  For  pulverized  ores. 

Badger,  E.S.   Ccnbines  measuring  and  sampling  machine.   U.S.  patent  725,915, 

April  21,  1903.  A  spout, that  is  attached  to  a  measuring  device  that  tilts 
mechanically  from  on--?  side  to  the  ct,:cr  alternately  dumping  its  contents 
front  e-ibhor  end,  passes  through  the  ore  stream  falling,  into  the  device  ana 
samples  it  at  each  movement. 

Bardill,  J,0.  Autoi^atic  sampling  machine.  U.S.  patent  1,063,494,  June  3,  1913, 
A  circulating  sweep -arm  with  a  s?jr:pl©  bcr  att-fhod  passes  through  the  stream 
of  falling  ore  at  regulated  intervals  and  catches  a  sample. 

Beeken,  L.L.   Coal  sampling  machine.  U.S.  patent  1,186,646,  June  13,  1916. 
Automatically  samples  a  large  body  of  coal  and  reduces  the  samples. 

Behr,  H.C.  and  Schmidt,  C.F.S.O.   'Apparatus  fcr  sub-dividin_,  stream  of  pulp  and 
other  liquids.  U.S.  patent  1,020,251,  March  12,  1912.  Apparatus  includes 
a  swinging  spout  that  moves  in  a  circle  and  passes  periodically  through  a 
falling  stream  of  liquid  catting  out  a  sample  each  revolution. 

Boener,  E.G.   Device  for  sampling,  mixing  and  blending  granular  substances.  U,S 
patent  1,160,036,  November  9,  1915.  The  material  falls  over  a  cone  into 
ducts  and  intervening  spaces.  The  material  led  off  by  the  ducts  and  that 
falling  between  them  is  led  off  in  both  cases  by  two  different  spouts,  di 
viding  both  of  the  previous  divisions. 

Bradford,  Allen,   Automatic  sampling  apparatus.  U.S.  patent  384,420,  June  12, 
18SS.   A  vibrating  sampling-cup  passes  through  launder  containing  pulp  or 
tailings  and  cut  out  sample, 

Bretherton,  S.E.   Ore  sampler.   U.S.  patent  704,853,  July  15,  1902.   For  ccarse 
ore.  Buckets  suspended  en  a  rotating  arm  pass  through  the  stream,  catch 
samples  and  en  pas-sin^  beyond  the  stream  are  tripped  and  their  contents 
dumped  into  a  sample  box. 

Bridgrnan,  H.L.   Ore  sc^mpler.  U.S.  patent  433,7?.4,  August  5.  1890.  The  mass 
of  ore  is  automatically  split  in  passing  through  chutes  rotated  by  hand. 

.   Sampling  machine.  U.S.  patent  457,145,  August  4,  3891.   A 

large  mass  of  ore  is  passed  through  chutes  with  spiral  blades,  1/8  being. 
taken  out  in  each  chute  and  passed  on  to  the  next,  until  the  sample  is 
reduced  to  two  samples  each  l/128th  of  the  mass. 

Brunton,  D.W.   Device  for  sampling.  U.S.  patent  454,120,  June  16,  1891.  A 

riffle  shovel  divided  in  three  parts,  the  outer  two  without  backs,  so  that 
when  the  shovelful  of  ore  is  tilted  backwards  one-third  the  contents  remains 
in  the  shovel  and  the  other  two-thirds  fall  out. 


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runt  on,  D.W.   Ore  sampling  ^chine.  U.S,  patent  304,359,  August  15, 

The  stream  is  cut  by  a  vibratim  spout  attached  to  a  bar  on  a  rotating  wheel 

_.   Or©  sampling  machine,  U.S.  patent  553,503,  January  23,  1896, 


A  spout  swines  across  the  ore  stream  and  deflects  samples. 

uskett,  E.W.  Multiple  riffle  sample.  U.S.  patent  6<±1,928,  January  22,  1907. 
The  sample  is  cut  out  and  reduced  by  p?.ssa,e  of  the  ore  through  three  sets 
of  riffles  in  an  inclined  shaft. 

yrnes,  0.   Sampling  machine,  U.o,  patent  608,634,  August  9,  1699.  The  pulp 

is  dropped  over  a  rotating  wheel  with  spiral  ribs*  One  rib  with  a  projecting 
spout  on  the  end  carries  off  a  sample  and  drops  it  into  a  receiving  spout  that 
leads  to  the  exterior  of  the  machine.;- 

alkins,  A.C.   Apparatus  for  separating  material.  U.S.  patent  850,293,  April  16, 
1907.  The  material  passes,  through  lateral,  openings  of  reflated  size  in  the 
side  of  the  hopper  into  rotating  buckets.  One  half  the  material  passes  on^ 
and  the  other  half  is  retained  in  the  buckets,  one  eighth  of  the  material  in 
each  bucket', 

.   Atfcahhment  for  ore  sampling  machine.  U.S.  patent  663, a44,  October 

1,  1901.  Device  to  control  agitation  of  hopper  independently  or  rotation  of 
the  sampling  buckets. 

Ore  sampling  machine,  U.S.  patent  682,528,  September  10,  1901. 


Mechanically  quarters  pulverized  ore  by  hand  power. 

Clarkscn,  Thomas.   Sampler  for  grain,  minerals,  etc,  U.S.  patent  518,915,  April 
24,  1894.  One- tenth  of  the  mass  is  obtained  as  a  sample  by  passing  through 
an  annular  rotating  hopper  with  chutes. 

Clift,  A.S.   Plant  or  apparatus  for  aamplinr  ore.  U.S.  patent  1,062,636,  May 
27,  1913.  A  series  of  brinding  and  deflecting  devices  for  automatically 
sampling  ore. 

Cheesman,  D.J.,  Moore,  J.A.  and  Snyder,  C,A.  Ore  sampler.  U.S.  patent  621,771, 
March  21,  1899.  The  stroam  is  mechanically  mixed  by  rotation  and  a  rotating 
bucket  cuts  the  stream  taking  two  samples. 

logswell,  S.E.   Automatic  sampler.  U.S.  patent  1,241,196,  September  25,  1917. 
A  series  of  empty  tubes  pass  under  a  hole  in  the  bottom  of  an  inclined  shaft 
down  which  ore  is  falling.  As  the  tuba  directly,  under  the  hold  becomes 
filled,  its  weight  causes  it  to  pass  on  admitting  the  next  tube  beneath  the 
hole.  Designed  for  crushed  or  granulated  rr^terial. 

Colby,  F.J.   Sampler.  U.S.  patent  1,133,933,  March  30,  1915.  A  series  of  rif 
fles  through  which  the  mass  of  ore  falls,  part  beinL  deflected  in  each  set 
and  sent  on  to  the  next  set  for  further  reducing. 

Collom,  J.   Machine  for  sampling  ores  and  othor  metals*  U.S.  patent  146,167, 
January  6,  1874. 

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Condi,  J.C.   Liquid  sampling  device.  U.S.  patent  569,733,  October  20, 

Constant,  C.L.   Ore  sampler.   U.S.  patent  868,471,  May  26,  1908.   The  ore  falls 
vertically  over  a  drum  rotating  horizontally,  &  sample  falls  into  the  drum 
through  two  openings  in  its  sides  and  passes  out  through  opening  at  tho  ends 
of  the  drum. 

Damm,  J.M.   Ore  mixer  and  sampler.  U.S.  patent  655,478,  August  7,  1900.  Ore  is 
rotated  in  the  hopper  and  falls  into  spouts,  one  of  which  leads  to  the  sample 
box. 

Dodd,  W.G.   Ore  or  pulp  sampler.  U.S.  patent  693,690,  February  18,  1902.  A 
rocking  trough  cuts  through  a  falling  ore  stream  and  samples  it  at  each 
movement.  The  samples  flow  out  through  a  pipe  and  are  outside  the  launder. 

Dodds,  R.D.   Sample-taking  device.  U.S.  patent  1,235,883,  August  7,  1917.  Obtai 
sample  of  formations  through  which  the  drill  bit  passes ,  Designed  particu 
larly  for  drilling  oil  wells. 

Drawe,  J.J.   Oil  and  liquid  sampler.  U.S*  patent  892,944,  July  7,  1916. 
Dyer,  G.S.   Liquid  samplsr,  U.S.  patent  732,059,  June  30,  1903, 

Eyre,  T.E.  Ore  sampling  machine.  U.S.  patent  299,920,  June  3,  1884.  A  grooved, 
conical  divider  in  the  hopper  cults  out  a  sample  which  is  removed  by  a  cylinde 
with  a  screw  thread  and  vertical  shaft,  journaled  to  rotate  within  the  hopper 

Fairchild,  O.H,  Ore  sampler.  U.S.  patent  1,001,129,  August  22,  1911.  Takes  a 
sample  transversely  across  a  sliding  stream  of  ore,  splits  it  in  two  parts, 
and  distributes  the  reserve  sample  in'itwo  or  more  compartments, 

Fanderx,  H.D.  Ore-sampling  machine.  U.S.  patent  649,288,  May  8,  1900.  Divides 
25  to  100-ton  lots  and  takes  a  small  sample  by  mechanically  splitting  the  ore 
stream, 

Fensterrcaker,  Abraham.   sample-taking  machine.  U.S.  patent  887., 615,  May  12,  1903 
A  turn-table  with  sample  box  comes  under  a  deflecting  spout  at  given  inter 
vals.  The  spout  deflects  sample  from  the  ore  stream  and  automatically  re 
leases  it  as  the  box  passes  under „  Designed  for  granular  or  pulverized  mater 
ial. 

Flood,  J.N.   Automatic  electric  sampler.  U.S.  patent  1,010,032,  November  28, 
1911.  A  moving  deflector,  actuated  by  electricity  automatically  takes  a 
cross  section  of  the  entire  stream  of  pulverized  ore  at  given  intervals. 

Foster,  C.R.  and  Coolidge,  Winthrop,   Ore  sampler.  U.S.  patent  694,734,  March  4, 
1902,  Wet  or  dry  ore  is  divided  by  gravity  in  passing  through  a  hopper  con 
taining  dividers. 

Geissler,  Carl.   Automatic  sampler  for  grain,  etc.  U.S.  patent  632,713,  Septem 
ber  12,  1899,  A  series  of  rotating  drums  cuts  out  part  of  a  falling  stream 
of  granular  material* 


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Jullberg,  A.G,   Ore  sampler.   U.S.  patent  782,235,  February  1-..,  1905.   A 

to  adjustment  of  p'.rt  the  cutter  takes  from  5  to  6070  of  ti^e  whole  stream  of 
ore, 

laggstrom,  C.J.   Liquid  sampler.   U.S.  patent  1,296,79-*,  March  11,  1S19, 

lallett,  S.I.   Ore  sampler.   U.S.  patent  566,169,  August  18,  1896.  Automatical 
ly  divides  the  mass  into  four,  retaining  one  quarter  as  sample,  which  is 
put  through  the  machine  again  until  the  sample  is  the  desired  quantity. 


Robert.  Automatic  sampling  device.  U.S.  patent  1,151,682,  Axigust  31, 
1915.  A  series  of  buckets  are  arranged  on  concentric  wheels  rotating  verti 
cally.  As  the  grain  passes  over  the  wheels  the  first  set  of  buckets  catches 
samples,  a  part  of  which  falls  into  the  second  set  and  a  part  of  that  sample 
filling  .into  the  third  set  until  1/96  th  of  the  original  sample  is  obtained. 
For  granular  material. 

aultain,  H.E.T.   Sampling  apparatus.  U.S.  patent  680,526,  August  13,  1901. 
Sets  of  troughs  inclined  and  spaced  to  catch  part  of  a  falling  mass.  Each 
set  reduces  the  size  of  the  sample. 

awley,  R.C,   Ore  sampling  device.  U.S.  patent  463.509,  November  17,  1891. 
Hoppers  arranged  one  above  tho  other  and  containing  oscillating  dividing 
win&s  thc.t  halve  tne  entering  material. 

_____  •   Ore  sampling  device.  U.S.  patent  475,557,  May  2fr,  189*;,  The 

stream  is  divided  in  half  in  the  first  hopper  and  each  half  passes  tnrough 
a,  series  of  -'hoppers  containing  oscillating  wings  where  they  are  reduced, 
resulting  in  two  identical  samples. 

opper,  G.L.   Ore  sampler.  U.S.  patent  523,664,  July  31,  1694.  A  swinging  spout 
passes  through  the  stream  of  liquid,  catches  a  sample  and  discharges  it  to 
one  side  of  the  launder. 

ngoldsby,  F.S.   Automatic  sampling  mechanism,  U.S.  patent  1,024,13ft,  April  23, 
1912.  A  pocket  to  be  attached  to  a  scoop  th^.t  automatically  takes  ?.  sample 
of  each  scoopful  of  ore, 

'ones,  L.E.   Sampler  operating  device.  U.S.  patent  1,079,010,  November  18,  1913. 
An  electrically  actuated  cutter  takes  samples  at  intervals  of  a  stream  of 
fluid  or  powdered  ore. 

ones,  William.   sampling  apparatus.  U.S.  patent  359,156,  M^irch  8,  1867.  A 

stream  of  ore  passing  down  an  inclined-  chute  passes  over  riffles,  the  re 

tained  ore  passes  on  and  over  a  second  set  of  riffles  ana  so  on  until  less 
than  ljs%  of  the  origin?.!  mass  is  obtained, 

awton,  C,L.   Tailing  sampler.  U.S.  patent  1,188,794,  January  27,  1916.  Samples 
are  lifted  from  tho  stream  by  a  fluid-pressure  jet  pas  sing  -back  '^uid  forth 
across  the  main  launder, 

cCone,  A.J.   Ore  sanpling  apparatus.  U.S.  patent  9*9,234,  February  lo,  1910. 
The  ore  falls  on  a  traveling  carrier  on  which  are  -a  series  of-  pans  spaced  so 
that  the  intervals  are  in  any  desired  proportion  to  the  pans  <   The  ore  falling, 
through  the  spaces  is  tne  sample. 

-75- 


McDermott,  Walter.  Ore  saL'.plinfc  ui?.ciiine.  U.S.  oaten t  ^54,203,  December  1*±,  ]6> 
Designed  to  be  attached  to  .-.  crushing  aill.  P.  spout  projects  into  tno  stre: 
of  dry  or  wet  ora  arid  deflects  a  sample  into  =•  pail. 

McGregor,  A,G.   Sampling  apparatus.  U.S.  patent  1,155,670,  October  5,  1915.  A 
carrier  on  chains  passes  through  a  falling  stream  at  regular  intervals, 
catches  a  sample,  and  automatically  dumps  it  into  a  sample  pile. 

Moore,  C.C.,  jr.   Sampling  machine.  U.S,  patent  573,610,  December  22,  1896. 
The  ore  falls  through  a  series  of  conical  hoppers  containing  deflectors. 
The  first  hopper  deflects  -$  the  mass,  which  passes  to  the  secona  hopper 
where  -J  of  the  sample  is  deflected,  &.  through  as  many  hoppers  as  is  desirec 

Morehouse,  W.L.   Ore  feeder  and  sampler.  U.S.  patent  1,079,  164,  November  13, 

1913.  A  tube  revolving  within  tne  hopper  nixes  tne  ore  with  an  external 
screw,  takes  samples  through  openinings  in  its  sides,  and  passes  them  to  its 
ends  by  means  of  .-ji  internal  screw  where  th^y  are  discharged, 

N%el,  C-irl.   Weighing  or  measuring  apparatus.  U.S.  patent  1,092,741.  April  7, 

1914.  Includes  a  device  to  take  samples  of  liquids  from  weighing  or  measur 
ing  apparatus  opened  by  valves. 

Newhouse,  R.C.   Sampling  device.  U.S.  patent  1,170,842,  February  3,  1916.  Part 
of  the  material  p-.ssing  through  a  screw  conveyor  is  automatically  released 
as  sample. 

Overstrom,  G.A.  Sampler,  U.S.  patent  674,096,  May  14,  1901.  The  entire  strean 
is  mechanically  deflected  at  regular  periods. 

Palmer,  C.E.   Apparatus  for  sampling  ores.  U.S.  patent  398,275,  February  19, 
1899.  The  ore  falls  over  a  conical  surface  and  one- third  is  caught  in  a 
pocket  as  a  sample. 

Peterson,  George,  Apparatus  for  takinb  samples  from  grain  and  tne  like.  U.S. 

patent  1,063,725,  June  3,  1913.   Cuts  many  small  samples  froa  either  an  un 
interrupted  or  an  intermittent  stream  of  pulverized  ore. 

Pott,  F.B.  Ore  sampler.  U.S.  patent  1,215,988,  February  13,  1917.  A  rotating 
drum  containing  buckets  that  open  into  the  base  of  a  cone,  catches  samples, 
and  discharges  them  through  tne  cone. 

Potter,  G.D*   Automatic  ore  sampl  .r.  U.S.  patent  679,574.  July  30,  1901. 
Periodically  cuts  part  of  the  mass. 

•   3re  sampling  machinery.  U.S.  patent  523,731,  July  31,  189*.  De 
signed  to  sample  5  car-load  lots  at  a  time.  The  weight  of  the  sample  is 
proportional  to  the  weight  of  the  car-load,  about  50  Ibs.  Each  car  is 
sampled  separately. 

Rant,  W,L.   Ore  sampling  machine.  U.S.  patent  751,340,  February  2,  1904.  Ore 
passes  down  chute  screw  conveyor,  and  over  E.  rotatin^  drum  that  catches  sam 
ples  through  openings  in  its  sides. 


-76- 


lamsay,  JErskine.   U.S.  patent  1,249,4:*!,  December  11,  1^17.  A  sample  pocket 

timed  to  move  transversely  across  chute  ana  cut  a  stream  of  falling  ere.  De 
signed  chiefly  for  coal.  A  screen  below  the  pocket  dump  divides  tne  slate, 
slack,  and  lumps. 

lorrison,  William.   Liquid  sampler.  U.S.  patent  166,717,  January  4,  1916. 

tossberg,  F.W.  '  Pulp  and  ore  sampler,  U.S.  patent  580,303,  April  3,  1897.  A 
cup  cuts  the  stream  mechanically  at  ;  regular  intervals. 

Scobey,  Jesse,   Ore  sampler,  U.S.  patent  684,314,  October  8,  1901.  Periodically 
diverts  a  part'  of  the  stream  into  a  trough.  Designed  for  tailings  but 
can  be  used  for 


Sheridan,  L*M.   Ore-sampling  device.  U.S.  patent  1,031,365,  July  2,  1912.  Cutter 
intermittently  deflects  part  of  the  stream 

Snyder,  F4T.  gamplfcr,  U.S.  patent  773,819,  November  1,  1904.  Gravity  conveyors 
from  which  samples  are  deflected. 

Stephens,  Will  and  Munger,  J.P.  Automatic  tailing  sampler,  U.S.  patent  665,620, 
January  8,  1901.  Journaled  drum  dips  sample  from  the  current. 

Stratton,  J.H.   Sampling  mill.  U.S.  patent  599,649,  February  22,  1898.  A  con 
centric  series  of  wheels  carrying  buckets  spaced  equidistantly.  T*16  toP  cl" 
the  buckets  is  proportioned  to  the  intervening  spaces  as  the  amount  of  tne 
sample  is  to  the  mass. 

fagliabue,  G.   Liquid  sampling  device.  U.S.  patent  540,121,  May  26,  1895. 

Dopham,  T.A.  Ore  sampler.  U.S.  patent  563,101,  June  30,  1896,  A  rotating  wheel 
with  a  chute  cuts?  sample  from  stream  of  ore.  The  number  of  samples  taken  is 
regulated  by  the  speed  of  the  wheel. 

ruesdell,  A.E,   Recording  sampler.  tJ4S.  patent  1,228,078,  May  29,  1917.  Pockets 
rotating  on  wheels  patch  samples  from  the  ore  stream.  The  pockets  °.re  timed 
to  cut  the  stream  in,  say  half  hour  intervals,  ana  are  labelled  with  their 
scheduled  time. 

Jrquhart,  C.H.   Ore  sampler.  U.S.  patent  1,008,638,  February  24,  1914.  Period 
ically  diverts  the  entire  stream;  operates  by  gravity, 

n  Mater,  J.A,   Ore  sampling  apparatus.  U.S.  patent  946,744,  January  18,  1910. 
Sampling  buckets  pass  automatically  on  chains  through  the  stream  of  falling 
ore  . 

Wallace,  J.M.   Toller  for  grain  or  ore.  U.S.  patent  240,344,  /y?ril  19,  1891. 

Sampling  spouts  around  the  periphery  of  a  conical,  rotating  hopper  carry  off 

samples. 


lifare,  W.B.   Sampling  machine.  U.S.  patent  1,274,962,  August  6,  1918.  A 

fitting  wheel  rotates  against  an  exposure  of  the  ore  stream  ana  carries  off 
a  sample  in  an  open  pocket.  For  powdered  or  granular  material. 


-77- 


Wendell,  C.A.   Automatic  sampling  device.  U.S.  patent  1,223,544,  April  2<t,  1917 
Selects  samples  autom-.tics.lly  from  a  stream  of  ore  and  reduces  then,  in 
geometrical  prograssion. 

Wsymouth,  T.R,   Thief  for  testing  oils.  U.S.  patent  844,433,  February  19,  1907. 

Williams,  C.J.   Apparatus  for  sampling  streams  of'  weV'bre  and  the  like.  U.S. 

patent  1,235,090,  July  31,  1917.  A  scoop  is  n^echanically  tipped  at  regular 
intervals  to  deflect  tha  stream  at' a  fall  in  a  stepped  launder. 


-78- 


U.  S.  Bureau  of  Mines  Publications  Containing  Notes  On  Sampling? 

In  the  preceding  text,  these  same  references  are  listed  alphabetically  by  author fei 
jinss,  but  are  grouped  here  for  convenient  reference. 

Bulletin  12.  1913.  Apparatus  and  methods  for  sampling  and  analysis  of  furnace 
ases,  by  J.C,V».  Frazer  and  3.J.  Hoffman. 

Bulletin  23,  1913.  Analysis  of  coals  in  the  United  States,  with  descriptions  of 
ine  and  field  samples  collected  between  1904:  aad  1910,  by  N.W.  Lord  ana  others. 

Bulletin  28,  1911.  United  States  fuel- test ing  plant  at  St.  Louis,  Mo.,  190o  to 
906,  by  N,  W.  Lord. 

Bulletin  42.  1913.   Sampling  and  examination  of  mine  gases  and  natural  gas,  by 
,  A.  Burrell  and  F.  M.  Seibert. 

Bulletin  51.  1913.  Analysis  of  black  powder  and  dynamite,  by  W.  0.  Snelling  ana 

.  G.  Storm, 

Bulletin  56,  1913.  First  s.ries  of  coal-dust  explosion  tests  in  the  Experimental 
ine,  by  G.  S,  Rice  and  others.  Methods  of  sampling  after-damp  and  other  gases,  pp. 
8,  54,  107. 

Bulletin  63.  1913.  Sampling  coal  deliveries,  ana  types  of  government  specif ica- 
ions  for  purchase  of  coal,  by  G.  S.  Pope, 

Bulletins  85  and  125  (1914  and  1917)  Analysis  of  mine  and  car  samples  of  coal 
ollected  in  1911-13  and  1913-16,  by  A.  C.  Fieldner  and  others.  Methods  of  collect- 
ng  and  analyzing  samples. 

Bulletin  93,  1916.  Feldspars  of  New  England  and  North  Appalachian  States  by  A. 
i,  Watts.  Testing  of  samples  described. 

Bulletin  963  1916.  Analysis  of  permissible  axplosives,  by  C.  G.  Storm.  Method. 
f  sampling  -dynamite  is  described. 

Bulletin  97.  1915.   Sampling  and  analyzing  flue  gases,  by  Henry  Kreisinger  and 
',K.  Ovitz. 

Bulletin  98.  1915.  Report  of  the  Selby  Smelter  Corgis si on,  by  J.  A.  Holmes, 
1,  C.  Franklin,  and  R.  A.  Goula.  Sampling  the  atmosphere  near  the  shelter. 

Bulletin  103,  1917.  Mining  ana  concentration  of  carnotite  ores,  by  K.  C.  Kithil 
ind  J.  A.  Davis,  Descriptions  and  illustrations  of  samplers. 

Bulletin  112,  1920.  Mining  and  preparing  domestic  graphite  for  crucible  use,  by 
}.  D.  Dub  and  F.  G.  Moses.  On  pages  36-36  is  described  and  illustrated  the  jnethoa 
ind  apparatus  used  in  sampling  sacked  graphite. 

Bulletin  116,  1918.  Methods  of  sampling  delivered  coal,  5y  G.  S.  Pope. 

Bulletin  12^,  1916.  Principles  and  practice  of  sampling  metallurgical  materials 
vith  special  reference  to  sampling  copper  bullion,  by  Edward  Keller. 

Bulletin  127,  1918.   Gold  dredging  in  the  United  States,  by  Charles  Janin. 
Sampling  and  calculating  placer  ground. 

-79- 


5-l-l^fiHLA^-L  -i§ii.  •     Dining  and  idllin^  leai-zinc  ore  in  tna  Mp.ssouri-Fansas- 
Oklahoma  district,   by  C.  A.  Wright.      Lrqpcrt^nce  cf   sf^iplinj  emphasizes. 


Bulletin  191,    1920.        Quality  cf   ^.scline  marketed,  in  hhe  United  States,    by 
H.H.  Hill  and  E.W.   Dean.     Methods  of   collecting   samples. 

Bulletin  195,    1921.        Underground  conditions  in  oil  fields,    by  A.V.  .    Ambrose. 
Sampling  drill-cores,    3aa.pl  e   containers,    e  aac.i  nation  of   samples. 

Bulletin  201.    1^21.       Prospe  ctint  and   test  ire   oil,    gas,    end  water-bearin^  stra 
By.  R.E.   Collom.      Sampling  and  identifying  drill   cuttings  from  oil-wells. 

Bulletin  210.    1921  .       Oil-shale:     history  Juid  technology.     By  M.J,    Gavin. 
Sampling  and  testing   shale  discussed,    inclauint  a  hint   to  taks   samples  from  bcslo 
exposed  surfaces. 

Technical  P-per  1.        Sauplinfe  of   coal   in   a  ,uine  ,  by  J  .A.   Holr.es. 

Technical  P^per  3f    1911.       Purch  se   of  fuel-oil  for  the  Government,   with  di 
rections  for   s^plink  oil  and  natural  gas,   by  J.C,   Allen. 


Technical  Pf.jer  l^^JL^lg^       Apparatus  for  ^as-analysis   laboratories  at   co?J 
mines,   by  G.A.  Burrell   and  F.M.   Seibert.     Apparatus  for  collecting,    s  angles   is  in 
eluded. 

Notes  on   s^jcipUng  and  analysis  of   coo.l,    by  A.C. 


Fildner.      Discusses  factors  affecting  accuracy  of   sampling,   and  methods  used  by 
the  Bureau  of  Mines. 

Technical  Paper  83.    1S15.       Buyin^   and  sellin£  ores   and  metallurgical  products 
by  C.H.  Fulton,     Brief  disc\ission  of   sampling  methods, 


Technical  Paper  95,    1915.        Minin&  and  udllin^  lead-2inc  ores  in  Wisconsin,    by 
C.A.  Wright.      Prospecting  by  drilling  discussed. 

Technical  Paper  109,    1915.        Composition  of  natural  ^as  used  in  25  cities,   by 
G.A.  Burrell  and  G.G.   Oberfell,     Samples  were  collected  in  300  cc,   bottles. 


Technical  Paper  133.  1919.   Directions  for  rampling  coal  for  shipment  or  deli\ 

,  by  G,S,  Pope.  The  complete  operation  of  sampling  is  graphically  set  forth 
in  a  series  of  34  sketches. 

Technical  Paper  143,  1917.,   Determination  of  moisture  in  coke,  by  A.C. 
Fieldner  and  W.A.  Selvig.   Method  of  handlint  samples  during  tests. 

Technical  Paper  11'6,  1918.   Methods  for  routine  work  in  the  explosives  physi 
cal  lab.  cf  Bureau  of  Mines,  Pittsburgh,  Pa,,  by  S.P.  Howell  and  J.E.  Tiffany. 
Regulations  reeHrdint  submitting  samples  of  explosives. 

Technical  Paper  261,  1921.   Ventilation  in  ...etal  uj.nes;  a  preliminary  report, 
by  Daniel  Harrington.  How  samples  of  mine  air  are  taken. 

Serial  2120,  April,  3920.   Oil  thieves,  by  A.R.  Elliott.  Description  of  in 
struments  used  in  sanplin^  oil  in  tanks  cr  reservoirs,  A  piece  of  pipe  or  bottle 
is  lowered  to  the  desired  depth,  and  a  sample  taken;  or  a  set  of  5;  to  1  inch 
valves  are  fitted  at  certain  intervals  on  tne  outside  of  ?.  tank,  allowine  samples 
t  o  b  e  drawn  off  . 

-60- 


Serials  No.    2202   and   2£3S,    1£21.        Properties  of   typical  crude  oils  .froa 
astern  producing  fields   of   the  Umted  States,    by   E.W.    Dean.      Brief  inert  ion  of 
ethod  of    sampling  . 


Notes   on  the  oil-shale   industry,    by  M.J.    Gavin,   H,TI,   K 
nd'V/.E.    Perdew.      Considerable   care   is  needed  in    s^mplin^    snale   clriocci  '.  .^  . 

Serial  No.    3352.    June   1921.        Gases  produced  by   carbon  tetrac:Ucr  '..c.e   C'ld  ::  O&TI- 
to  i.lre   eztinsui  shei's   in  mines,    by  A.C,   li'ioldnsr  and  8,H.   Katz.      PJ.an  c.r  ir.ins 
hows  positions  for  taking   gas   samples. 

report.        F.   Form  6   -   138.      A  blank  for   report   on  a  coal   seam  and  samplas 
aken  therefrom.     One  page. 

Sampling   report.       Form  -   -  -    .       A  blank  for  report   on  shale  deposits.      One 


-dl- 


Acid,   water,    ate.  --- 

350;    3b9;    -*39;    559;    615;    723;    c^l. 


Air,    dust,    and 

11;    22;    23;    63;    75;    87;    106;    107;    10  v,    Kb  ;    116;    15b;    1*8;    216;    227;    2*3; 
299;    30*;    316;    3*5;    3-*6;   350;   355;   359;    376;    377;    <±1*;    <±75;    4o9;    702  a; 
715;    722;    72*;   769;    790;    604;    676. 


bauxite   --- 

486;    761;      Bureau  of   Mines   (see   list   of   U.S.   Bure-u  of   Mines  publications, 
which  precedes    this   subject   index) 

Calcium  carbide  --- 
651  a. 

Carnotite  ---- 

435. 

CeiLent  ,  clay,    concrete,    etc.  --- 

15;    347;    353;    697;    769;    767. 

Chroinite  -  — 

19^  a;   372. 

Goal  — 

17;    19;    42;    43;    61;  72;    89;    110;    111;    112;    121;    122;    135.;    l4o;    14*;    155;    179; 

206;    209;    296;    2*7  ;  296;    301;    302;   315;    332;   334;   350;    375;    3d7;    393;   *16; 

440;    459;    477;    460;  527;    529;    530;    570:    655;    663;    66*;    676;    679;    6cO;    633; 

6o4;    736;    740;   7*1;  747;    766  a;    776;    786;    602;    503;    811;    693;    901. 

Coke 

13;    43;    120;    123;    135;    199;   300;   337;    *6?  ;    521;    762. 

Copper  --- 

2;   3;    4;    8;    11;    28;  36;    36;   40;    50;    59;  65;    99;    103;    147;    166;    176  ;    167; 

189;    197;   212;    213;  214;    236;    260;    270;  276;    265;    269;    321;   354;   365;    456; 

*6o;    469;    470;    *71;  472;    473;    474;    499;  5o2;    5o3  ;    515;    516;    516;    522;    52*; 

537;    545;    5*9;    552;  569;    572;    609;    624;  629;    66^;    673;    675;    676;    685;    692; 
695  a;    702;    711;    713;    733;    746;    757;   760;    770;    773;    777;   796;    620;    o25;    833; 

647;    646;    669;    880;  86*. 

Custom  samplers  ---  f 

33;   35  a;   40;   81;    97;    114;    12*;    212;   2*6;   251;   S&*\   436;   4*3;   4*0;   501; 
526;    5*3;    5**;    5S6  ;    612;    633;    671;    688;    704;    705;    708;    739;    767  &;   816;    3^9; 
835  a;    865;    666;    875;    891, 

Diaircndif  ercus  ground  --- 
547;    698. 

Drilling   --- 

1;    6;    13;    68;    73;   74;    76;    173;    163;    192;    210;    230;    260;   3^1;    327;   328;   335; 
353;   360;   362;   37<±  ;   360;    3*5;   397;    403;    *16;   *21;    437   a;   *50;    *53;    *65;    -±92; 
528  a;    597;    620;    629;    632;    663;    672  a;    674;    668   b;    690;    702;    718;    725;    735; 
745;    785;    791;    805  a;    B17;    318;   841;    852;    867;    886. 

DuiLps  (ore  and  tailings)   --- 

69;   370;   383;    412;   426;    433;    525;   5*0;    5*1;    626;    6S4;    845;    846;    886;    887. 

-82- 


6;    65;    05;    73;    74;    126;    128;    129;    157;   159;    131;    158;    176;    176;    133;    192; 
SIC;    230:    283;    290;    295;.  321;    354;   357;    362;   ^74;   378;   330;    595;    672;    713; 
837;    ?49;    852;    879  4 


59*;    780;    797  a. 


'351. 

Id  — 

5;    31;   3*;    44;  45;   *»;    61;    57;    6*;  77;    1<55;    126;    138;    143;    161;    172;    176; 

177;  133;    184;  136;    168;    191;    192;  201;    202;    205;    205;    213  a;    266;    236;   313; 

314;  323;    331;  335;    341;    360;    366;  378;    385;    395;    3*7;    *C3  ;    416;    423;    426; 

&27;  437;   443;  4*8;    4*9;    *50;    451;  453;    ^5*  ;   *55;   *62  a;   464;    465;    466;    *70; 

432;  506;   508;  511;    523;    553;    579;  601;    602;    619;    623;    638;    640;  .60!  ;    660; 

669;  701;    709;  721;    723;    731;    73.3;  737;    ?65;    757;    752;    809;    813;    81*;    815; 

82*;  o36   a;    836  b;    864;    876;    880;   882;    883,    894;    900. 

aphite  --- 
196  a. 

on  and   steel  --- 

37;    39;    54;    56;    88;    115;    118;    119   a;    151;    162;    164;    165;    230;    305;    306;   338; 
373;   411;    428;   431;   495;    534;    614;    627;    625;    652;    6*3;    7*6;    759;   808;    blO; 
812  a:    867;    880  a>    390. 

iboratory  methods  --- 

26  a;    32;    33;    40  a;  46;    54;    65;    82;    91;  92;    93;    95;    96;    127;    134;    137;    145; 

152;    172;    177;    191;  202;  213;    216;    222;  228;  229;  229  a;    232;    237;    245;    250; 

25*;    269;    271;    279;  298;  303;   323;   324;  354;  359;  365;    363;    371;    372;   385; 

386;    387;    411;    414;  *34;  435;    444;    445;  4*7;  *52;  450;    *76;    47y;    *81;    *o7; 

491;    505;    509;    520;  528;  533;    536;    639;  560;  567;  571;    573;    574;    ;    575;    576; 

578;    580;    533;    604;  606;  611;    615;    630;  637;  644;  645;    646;    643;    65b;    606; 

681;    696;    70*;    705;  714;  742;    743;    7*4;  750;  763;  77*;    806;    815;    522;    835- 

834;    859;    868;    873;  391;  691  a;    398, 

ead  --- 

9;    29;   34;    142;    180;    161;    194;    200;    217;    265;    370;    392;    *20;    430;   *90;    500; 
586;    521;    691;    706;    707;    785;    792;    850;    663;    671;    861;    631  a;    896. 

eather  --- 
768. 

ietals   (copper,    ^cla,    iron,    lead,    silver,    steel,    zinc)   --- 

64;    67;    1*2;    186;    137;    194;    196;    200;    217;    262;    273;    27b;   305;   366;   373;   383; 
387;   429;    430;    431;    **64;   468;    469:   *70;    471;   *72;   473;    493;    501;    502;    503; 
505;    506;    515;   516;    518;    522;    52*;    53*;    564;    691;    717;    726;    771;    772;    778; 
797;    895. 

!ill  products  — 

6;    41;    69;    90  a;    166;    173;    ^06;   221;    231;   370;   410;    **!;   461;    462;    512;    525; 
540;    541;    556;    563;    56*;    602;    605;    613;    634;    650;    653;    66-*;    670;    751;    752; 
757;    764;   820;    836;    340;    648;    869. 

-83- 


Mill   sau-pling,,    ^nerOL   (see  also  patents)  — 

?;    7   a;    34;    25;    25;    27;    30;   35;    41;    44;    52;    53;    56;    60;    70;    71;    76;    79;    80 
62;    83;    93;    94;    95;    *7  >    ^6;    101;    117;    131;    132;    139;    13*   a;    140;    141;    1*5; 
150;    153;    171;    ISO  a;    1*3;    207;    211;    221;    2<;3 ;    22*;    225;    23-*;    235;    236;    23; 
240;    <;*9;    255;    259;    262;    263;    267;    275;    276;    277;    281;    29* ;    307;    303;    309; 
317;   319;   340;    363;    36i?;   361;    382;   386;    390:    406;   *13;    415;    *32;    442;    510; 
51-*;    533   a;    542;    5*8;    549   a;    553;    557;    558;    579;    585;    608;    61*  a;    615;    630; 
539;    661;    70*;    705;    716;    719;    724;    753;    75*;    758;    765;    766;    793;    842;    856; 
633;    691;    831   a;    902;  c05. 

Mine   sarr.pl ing,    ^ensr-^1 

21;    25;    33;   46;    47;    48;    55;    65;    77;    91;    102;    10*;    105;    128   a;    129;    130;    13c 
143;    156;    157   a;    157  b;    163;    167   a;    169;    170;    162;    190;    20*;    226;    229;    2*1; 
2*2;    2**;    256;    257;    258;    259;    261;    26*;    266;    266;    27-*;    232;    283;    267;    *y3 
310;   314;    320;    326;    329;   330;    351;   356;   356  a;   3*2  a;   3*9;    356;   36*;   367; 
379;    364;    365;    391;    394;    398;    399;   *00;    *01;    <*C2;   *05;    *0s;   *2c;   *26  a;    < 
454;   483;    *99    a;    505  a-    507;    513;    513    *;    532;    046  a;    546;    554;    561;    562;   56 
567  a;    577;   561;   567;    590;   591;    5i?2;    593;    596;   599;    600;    607;    611;    616;    6^5 
626;    633;    642;    643;    647;    6*9;    653  a;    654;    657;    65s;    662;    667: a;    672  a;    677; 
682;    688   a;    700;    703;    705  a;   710  a;    712;    713;    727;    730;    733  a;    7**;    754; 
766;    767;    773  a;    775;    78*;    788;    79*  a;    7*5;    798;    799;    805;    612;    819;    822  a; 
627;    344;    653;    855;    656;    857;    858;    660;    361;    .262;    862  a;    86<*  a;    868;   870; 
373;    874;    877;    864;    867;    903;   906. 

Molybdenite  

494, 

Nickel  

894  a,v 

Nitrates  - — 

7  b;   327;   336;    720;    601. 

Oil 

1,    10;    12;    13;    14;    16;    20;    123;    175;    284;   407;    723;    822. 

Oil-shale  

163;    174;    332  a;   333;    455  a;    686. 

Placers  

126;    161;    176;    183;    192;    210;    328;   335;    360;   395;   397;    403;    416;    423;   426; 
437;    437  a;    448;    4-*9 ;    450;    453;    465;   *34;    436;    492;    523  a;    636;    672  a;    674 ; 
636  b;    690;   721;    745;    785  a;    791;    617;    816;    626;    841;    852  a. 

Pyrite  — 

195;    246. 

Quicksilver 

78;    160;    196;    205;   342;    735;    794;    eOO. 

s£.qples 

21;   49;    252;   253;    268;    4*6;   496;    519;    531;   550;    532;    596;    667;    756;    798; 
607;    839;    854. 


-3*- 


Silver  -  — 

34;  67;  100;  119;  124;  125;  137;  145:  152;  154;  205;  242;  247;  2-i*  ;  313;  i 
35o;  368;  420;  42^;  451;  504;  551;  555;  539;  651;  673  a;  657;  72o;  779;  635; 
399. 


2;  11;  29;  32;  58;  50;  67;  79;  60;  32;  33;  c4;  d5;  66;  92;  93;  94;  95;  »6; 
97;  98;  117;  139  a;  153;  195;  196;  216;  233;  251;  322;  343;  34*;  353;  *25  ; 
456;  457;  463;  497;  546;  667;  6^9;  82e;  631;  891; 

Soil  — 

318  a. 

Tin  --- 

136;  144;  203;  219;  220;  291;  292  a;  565;  610;  617;  635;  663;  731;  823, 

Tungsten  --- 

404.  U.S.  Bureau  of  Mines  publications  ---  (see  list  wnich  precedes  this 
subject  index)  . 

Zinc  --- 

62;  69;  70;  113;  114;  165;  272;  662;  333;  493;  564  ;  695;  7o5;  o35;  d96;  897. 


-85- 


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